TWI785252B - Process for producing perfluoroalkadiene compounds - Google Patents

Process for producing perfluoroalkadiene compounds Download PDF

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TWI785252B
TWI785252B TW108120765A TW108120765A TWI785252B TW I785252 B TWI785252 B TW I785252B TW 108120765 A TW108120765 A TW 108120765A TW 108120765 A TW108120765 A TW 108120765A TW I785252 B TWI785252 B TW I785252B
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江藤友亮
丸尾敦
中井勝也
太刀川祥平
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日商大金工業股份有限公司
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Abstract

本發明係關於一種全氟鏈烷二烯化合物的製造方法，其為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟；

Figure 108120765-A0101-11-0001-1
[式中，n與前述相同。X1 、X2 及X3 為相同或相異，X1 及X2 表示鹵素原子，X3 表示氯原子、溴原子或碘原子。但，未有X1 及X2 的雙方為氟原子之情況]；前述反應步驟中含有，將含有鋅或者鋅合金以及有機溶劑的溶液、含氮化合物與前述一般式(2)所示化合物以逐次方式進行混合的混合步驟時，可減少難分離的雜質之生成量且可高產率下得到全氟鏈烷二烯化合物。The present invention relates to a kind of production method of perfluoroalkadiene compound, and it is to have: in organic solvent, in the presence of nitrogen-containing compound, and zinc or zinc alloy, make the compound represented by following general formula (2) the reaction steps to carry out the reaction;
Figure 108120765-A0101-11-0001-1
[wherein, n is the same as above. X 1 , X 2 and X 3 are the same or different, X 1 and X 2 represent a halogen atom, and X 3 represents a chlorine atom, a bromine atom or an iodine atom. But, do not have the situation that both of X1 and X2 are fluorine atoms]; Contain in the aforementioned reaction step, will contain the solution of zinc or zinc alloy and organic solvent, nitrogen-containing compound and the compound shown in aforementioned general formula (2) with When the mixing step of mixing is carried out in a sequential manner, the amount of difficult-to-separate impurities can be reduced and the perfluoroalkadiene compound can be obtained at a high yield.

Description

全氟鏈烷二烯化合物的製造方法Process for producing perfluoroalkadiene compounds

本發明揭示有關全氟鏈烷二烯化合物之製造方法。The present invention discloses a method for producing perfluoroalkane diene compounds.

全氟鏈烷二烯化合物可作為半導體用乾蝕刻氣體以外，亦可作為各種冷媒、發泡劑、熱移動媒體等有用化合物，於碳-碳之間具有2個雙鍵。特別為有4個碳數且於兩末端具有雙鍵的六氟丁二烯可活用於種種用途上。Perfluoroalkanadiene compounds can be used not only as dry etching gases for semiconductors, but also as useful compounds such as various refrigerants, foaming agents, and heat transfer media. They have two double bonds between carbon and carbon. In particular, hexafluorobutadiene having 4 carbon atoms and double bonds at both ends can be used in various applications.

作為該全氟鏈烷二烯化合物之製造方法，已知有於有機溶劑之存在下，在所望溫度下將Mg、Zn、Cd、Li等有機金屬化合物作為反應劑使用，藉由將ICF2 CF2 CF2 CF2 I等化合物進行脫IF的方法(例如參照專利文獻1)。另一方面，作為全氟鏈烷二烯化合物之製造方法，已知有將ICF2 CF2 CF2 CF2 I等化合物之脫IF在金屬鋅及含氮化合物的存在下進行(例如參照專利文獻2)。 [先前技術文獻] [專利文獻]As a method for producing the perfluoroalkadiene compound, it is known to use an organometallic compound such as Mg, Zn, Cd, Li, etc. as a reactant at a desired temperature in the presence of an organic solvent. A method of deIFing compounds such as 2 CF 2 CF 2 I (for example, refer to Patent Document 1). On the other hand, as a method for producing perfluoroalkadiene compounds, it is known to perform deIF of compounds such as ICF 2 CF 2 CF 2 CF 2 I in the presence of metallic zinc and a nitrogen-containing compound (for example, refer to Patent Document 2). [Prior Art Document] [Patent Document]

[專利文獻1]特開昭62-26240號公報 [專利文獻2]特開2001-192345號公報[Patent Document 1] JP-A-62-26240 [Patent Document 2] JP-A-2001-192345

[發明所解決的課題][Problems Solved by the Invention]

本發明係關於以提供可在減低難分離的雜質生成量下，高產率地得到全氟鏈烷二烯化合物方法作為目的。 [解決課題的手段]The present invention relates to an object of providing a method capable of obtaining perfluoroalkadiene compounds in high yield while reducing the amount of difficult-to-separate impurities. [means to solve the problem]

本發明揭示包含以下構成。 項1.一種全氟鏈烷二烯化合物的製造方法，其為下述一般式(1)所示全氟鏈烷二烯化合物的製造方法，

Figure 02_image003
[式中，n表示4～20的整數]； 其特徵為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟；
Figure 02_image005
[式中，n與前述相同；X1 、X2 及X3 表示相同或相異者，X1 及X2 表示鹵素原子，X3 表示氯原子、溴原子或碘原子；但，未有X1 及X2 的雙方為氟原子之情況]； 前述反應步驟中含有：將含有鋅或者鋅合金以及有機溶劑的溶液、含氮化合物與前述一般式(2)所示化合物以逐次方式進行混合的混合步驟。 項2.如項1之製造方法，其中前述混合步驟為含有：將含有鋅或者鋅合金以及有機溶劑的溶液，與含氮化合物進行混合之步驟； 對於前述含有鋅或者鋅合金以及有機溶劑的溶液，將前述含氮化合物以對於前述鋅或者鋅合金1莫耳而言為0.1～600mol/小時的添加速度進行添加。 項3.如項1或2之製造方法，其中前述混合步驟為，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述一般式(2)所示化合物進行混合，其次將所得的混合液與前述含氮化合物進行混合的步驟。 項4.如項1或2之製造方法，其中前述混合步驟為，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物進行混合，其次將所得的混合液與前述一般式(2)所示化合物進行混合者。 項5.如項4之製造方法，其中前述混合步驟為，對於前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物之混合液，將前述一般式(2)所示化合物，以對於前述鋅或者鋅合金1莫耳而言為0.05～30mol/小時的添加速度進行添加。 項6.如項3～5中任1項之製造方法，其中前述混合步驟中，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物進行混合時，前述溶液的溫度為50～200℃。 項7.如項1～6中任1項之製造方法，其中前述含氮化合物為N,N-二甲基甲醯胺。 項8.如項1～7中任1項之製造方法，其中前述有機溶劑的沸點為前述含氮化合物的沸點以下。 項9.一種全氟鏈烷二烯組成物，其特徵為含有一般式(1)：
Figure 02_image007
[式中，n表示4～20的整數]所示全氟鏈烷二烯化合物、 一般式(3)：
Figure 02_image009
[式中，n與前述相同]所示化合物、 一般式(4A)：
Figure 02_image011
[式中，n與前述相同；X1 及X2 表示相同或相異的鹵素原子；但，未有X1 及X2 的雙方為氟原子之情況]所示化合物，及/或一般式(4B)：
Figure 02_image013
[式中，n與前述相同；X2 表示鹵素原子]所示化合物，與 一般式(5)：
Figure 02_image015
[式中，n與前述相同；X1 及X2 表示相同或相異的鹵素原子；但，未有X1 及X2 的雙方為氟原子之情況]所示化合物。 項10.如項9之全氟鏈烷二烯組成物，其中將前述全氟鏈烷二烯組成物的總量作為100莫耳%時，前述一般式(1)所示全氟鏈烷二烯化合物的含有量為30～99.8莫耳%。 項11.如項9或10之全氟鏈烷二烯組成物，其中前述一般式(1)所示全氟鏈烷二烯化合物為六氟丁二烯。 項12.一種蝕刻氣體、冷媒、熱移動媒體、發泡劑或樹脂單體，其特徵係由如項9～11中任1項之全氟鏈烷二烯組成物所成。 [發明之效果]The disclosure of the present invention includes the following constitutions. Item 1. A method for producing a perfluoroalkanadiene compound, which is a method for producing a perfluoroalkanadiene compound represented by the following general formula (1),
Figure 02_image003
[In the formula, n represents an integer of 4 to 20]; It is characterized in that it has: in an organic solvent, in the presence of a nitrogen-containing compound, and zinc or zinc alloy, the compound shown in the following general formula (2) is reacted reaction steps;
Figure 02_image005
[wherein, n is the same as above; X 1 , X 2 and X 3 represent the same or different persons, X 1 and X 2 represent halogen atoms, and X 3 represent chlorine atoms, bromine atoms or iodine atoms; however, there is no X Both 1 and X2 are the situation of fluorine atom]; Contain in the aforementioned reaction step: will contain the solution that contains zinc or zinc alloy and organic solvent, nitrogen-containing compound and the compound shown in aforementioned general formula (2) are mixed successively Mixing step. Item 2. The production method as in Item 1, wherein the aforementioned mixing step includes: mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound; for the aforementioned solution containing zinc or zinc alloy and an organic solvent , adding the aforementioned nitrogen-containing compound at an addition rate of 0.1 to 600 mol/hour with respect to 1 mol of the aforementioned zinc or zinc alloy. Item 3. The production method as in Item 1 or 2, wherein the aforementioned mixing step is to mix the aforementioned solution containing zinc or zinc alloy and an organic solvent with the compound represented by the aforementioned general formula (2), and then mix the resulting mixed solution A step of mixing with the aforementioned nitrogen-containing compound. Item 4. The production method as in Item 1 or 2, wherein the aforementioned mixing step is to mix the aforementioned solution containing zinc or zinc alloy and an organic solvent with the aforementioned nitrogen-containing compound, and then mix the resulting mixed solution with the aforementioned general formula ( 2) Compounds shown are mixed. Item 5. The production method as in Item 4, wherein the mixing step is, for the mixed solution of the aforementioned solution containing zinc or zinc alloy and an organic solvent, and the aforementioned nitrogen-containing compound, mixing the compound represented by the aforementioned general formula (2), and It is added at an addition rate of 0.05 to 30 mol/hour with respect to 1 mol of the aforementioned zinc or zinc alloy. Item 6. The production method according to any one of Items 3 to 5, wherein in the mixing step, when the solution containing zinc or zinc alloy and an organic solvent is mixed with the nitrogen-containing compound, the temperature of the solution is 50 ~200°C. Item 7. The production method according to any one of Items 1 to 6, wherein the nitrogen-containing compound is N,N-dimethylformamide. Item 8. The production method according to any one of Items 1 to 7, wherein the boiling point of the organic solvent is equal to or lower than the boiling point of the nitrogen-containing compound. Item 9. A perfluoroalkadiene composition characterized by containing the general formula (1):
Figure 02_image007
[wherein, n represents an integer of 4 to 20] the perfluoroalkadiene compound represented by the general formula (3):
Figure 02_image009
[In the formula, n is the same as above] the compound shown, general formula (4A):
Figure 02_image011
[In the formula , n is the same as above; X1 and X2 represent the same or different halogen atoms ; but, there is no case where both X1 and X2 are fluorine atoms] the compound shown, and/or the general formula ( 4B):
Figure 02_image013
[In the formula , n is the same as above; X2 represents a halogen atom] the compound shown in the general formula (5):
Figure 02_image015
[In the formula, n is the same as above; X 1 and X 2 represent the same or different halogen atoms; however, there is no case where both of X 1 and X 2 are fluorine atoms] the compound shown. Item 10. The perfluoroalkane diene composition as in item 9, wherein when the total amount of the aforementioned perfluoroalkane diene composition is taken as 100 mole %, the perfluoroalkane diene represented by the aforementioned general formula (1) The content of olefinic compounds is 30-99.8 mol%. Item 11. The perfluoroalkanadiene composition according to Item 9 or 10, wherein the perfluoroalkanadiene compound represented by the aforementioned general formula (1) is hexafluorobutadiene. Item 12. An etching gas, refrigerant, heat transfer medium, foaming agent or resin monomer, characterized in that it is composed of the perfluoroalkadiene composition in any one of Items 9-11. [Effect of Invention]

依據本發明，可在減低難分離的雜質生成量下，高產率地得到全氟鏈烷二烯化合物。According to the present invention, perfluoroalkadiene compounds can be obtained in high yield while reducing the amount of difficult-to-separate impurities.

[實施發明的型態][Types of implementing the invention]

本說明書中，「含有」表示包含「包含(comprise)」、「僅實質上含有由…所成(consist essentially of)」，及「僅由…所成(consist of)」中任一種包含的概念。又，本說明書中，若將數值範圍以「A～B」表示時，表示A以上B以下的意思。In this specification, "contains" means to include any one of the concepts contained in "comprise", "consist essentially of", and "consist of only" . In addition, in this specification, when a numerical range is represented by "A-B", it means that A is above B and below.

本發明揭示的全氟鏈烷二烯化合物之製造方法為，下述一般式(1)所示全氟鏈烷二烯化合物之製造方法，

Figure 02_image017
[式中，n表示4～20的整數]； 其為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金之存在下，使下述一般式(2)所示化合物進行反應的反應步驟者；
Figure 02_image019
[式中，n與前述相同。X1 、X2 及X3 為相同或相異，X1 及X2 表示鹵素原子，X3 表示氯原子、溴原子或碘原子。但，未有X1 及X2 的雙方為氟原子之情況]；前述反應步驟中含有，對於含有鋅或者鋅合金以及有機溶劑之溶液，混合含氮化合物之混合步驟。The manufacturing method of the perfluoroalkane diene compound disclosed by the present invention is, the manufacturing method of the perfluoroalkane diene compound represented by the following general formula (1),
Figure 02_image017
[In the formula, n represents an integer of 4 to 20]; It is equipped with: in an organic solvent, in the presence of a nitrogen-containing compound, and zinc or zinc alloy, the compound shown in the following general formula (2) is reacted Response step;
Figure 02_image019
[wherein, n is the same as above. X 1 , X 2 and X 3 are the same or different, X 1 and X 2 represent a halogen atom, and X 3 represents a chlorine atom, a bromine atom or an iodine atom. However, there is no case where both of X1 and X2 are fluorine atoms]; the aforementioned reaction step contains a mixing step of mixing nitrogen-containing compounds for a solution containing zinc or zinc alloy and an organic solvent.

對於本發明，與專利文獻1及2的方法相比較，本發明的產率佳，且與專利文獻2相比較，可抑制1,1,1,2,4,4,4-七氟-2-丁烯等難分離的雜質而得到目的物。For the present invention, compared with the methods of Patent Documents 1 and 2, the yield of the present invention is better, and compared with Patent Document 2, it can inhibit 1,1,1,2,4,4,4-heptafluoro-2 -butene and other difficult-to-separate impurities to obtain the target product.

特別為一般式(2)所示化合物中，與CF2 X3 基鄰接的基為CF2 ，故ClCF2 CFClCF2 CF2 H、ICF2 CF2 CF2 CF2 H、BrCF2 CF2 CF2 CF2 H等雜質(後述的一般式(5)所示化合物)生成於收集缸之液相中，於氣相中幾乎不存在。因此，其為在僅採取收集缸之氣相時不會成為問題之雜質，但在採取如後述的收集缸之氣相及液相時則為成為問題的雜質。在本發明揭示中，如上述，藉由混合含有鋅或者鋅合金以及有機溶劑之溶液與含氮化合物(特別對於含有鋅或者鋅合金以及有機溶劑的溶液，添加含氮化合物)時，可減少該雜質之生成量。Especially in the compound shown in the general formula (2), the group adjacent to the CF 2 X 3 group is CF 2 , so ClCF 2 CFClCF 2 CF 2 H, ICF 2 CF 2 CF 2 CF 2 H, BrCF 2 CF 2 CF 2 Impurities such as CF 2 H (compounds represented by the general formula (5) described later) are produced in the liquid phase of the collection tank and hardly exist in the gas phase. Therefore, it is an impurity that does not become a problem when only the gas phase of the collection tank is collected, but it is an impurity that becomes a problem when the gas phase and the liquid phase of the collection tank as described later are collected. In the disclosure of the present invention, as mentioned above, by mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound (in particular, adding a nitrogen-containing compound to a solution containing zinc or a zinc alloy and an organic solvent), this can be reduced. The amount of impurities produced.

對於一般式(1)及(2)，n為4～20的整數，較佳為4～10的整數。藉由該範圍，可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物。For general formulas (1) and (2), n is an integer of 4-20, preferably an integer of 4-10. With this range, the perfluoroalkadiene compound can be obtained in a higher yield while reducing the amount of difficult-to-separate impurities.

換言之，欲製造的一般式(1)所示全氟鏈烷二烯化合物，可舉出六氟丁二烯(CF2 =CF-CF=CF2 )、八氟戊二烯(CF2 =CF-CF2 -CF=CF2 )、十氟己二烯(CF2 =CF-CF2 -CF2 -CF=CF2 )等。In other words, perfluoroalkanadiene compounds represented by the general formula (1) to be produced include hexafluorobutadiene (CF 2 =CF-CF=CF 2 ), octafluoropentadiene (CF 2 =CF -CF 2 -CF=CF 2 ), decafluorohexadiene (CF 2 =CF-CF 2 -CF 2 -CF=CF 2 ), etc.

對於一般式(2)，X1 及X2 為鹵素原子，可舉出氟原子、氯原子、溴原子、碘原子等。對於一般式(2)，X3 為氯原子、溴原子或碘原子。X1 、X2 及X3 可相同亦可相異。但，X1 及X2 的雙方為氟原子時，反應無法進行而無法得到全氟鏈烷二烯化合物，故未有X1 及X2 的雙方為氟原子之情況。其中由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，作為X1 ，以氯原子、溴原子、碘原子等(特別為氯原子、溴原子等)為佳，X2 以氟原子、氯原子、溴原子等(特別為氟原子、氯原子等)為佳，作為X3 以氯原子、溴原子、碘原子等(特別為溴原子、碘原子等)為佳。In the general formula ( 2 ), X1 and X2 are halogen atoms, and examples thereof include fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms. For the general formula (2), X 3 is a chlorine atom, bromine atom or iodine atom. X 1 , X 2 and X 3 may be the same or different. However, when both X1 and X2 are fluorine atoms, the reaction cannot proceed and a perfluoroalkadiene compound cannot be obtained, so there is no case where both X1 and X2 are fluorine atoms. Among them, from the viewpoint of obtaining perfluoroalkadiene compounds in higher yields while reducing the amount of difficult-to-separate impurities, as X 1 , a chlorine atom, a bromine atom, an iodine atom, etc. (especially chlorine atom, bromine atom, etc. ) , X2 is preferably fluorine atom, chlorine atom, bromine atom, etc. (especially fluorine atom, chlorine atom, etc.), and X3 is preferably chlorine atom, bromine atom, iodine atom, etc. (especially It is preferably a bromine atom, an iodine atom, or the like).

作為欲滿足如此條件的一般式(2)所示化合物，例如可舉出ClCF2 -CFCl-CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 I、ICF2 -CF2 -CF2 -CF2 I、ICF2 -CF2 -CF2 -CF2 -CF2 I、ICF2 -CF2 -CF2 -CF2 -CF2 -CF2 I、BrCF2 -CF2 -CF2 -CF2 Br、BrCF2 -CF2 -CF2 -CF2 -CF2 Br、BrCF2 -CF2 -CF2 -CF2 -CF2 -CF2 Br等，可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，以ClCF2 -CFCl-CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 I、BrCF2 -CF2 -CF2 -CF2 Br、BrCF2 -CF2 -CF2 -CF2 -CF2 Br、BrCF2 -CF2 -CF2 -CF2 -CF2 -CF2 Br等為佳，以ClCF2 -CFCl-CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 I、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 I等為較佳。Examples of compounds represented by the general formula (2) that satisfy such conditions include ClCF 2 -CFCl-CF 2 -CF 2 I, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 I, ClCF 2 -CFCl -CF 2 -CF 2 -CF 2 -CF 2 I, ICF 2 -CF 2 -CF 2 -CF 2 I, ICF 2 -CF 2 -CF 2 -CF 2 -CF 2 I, ICF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 I, BrCF 2 -CF 2 -CF 2 -CF 2 Br, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 Br, BrCF 2 -CF 2 -CF 2 - CF 2 -CF 2 -CF 2 Br, etc. can obtain perfluoroalkadiene compounds in higher yields while reducing the amount of difficult-to-separate impurities. ClCF 2 -CFCl-CF 2 -CF 2 I, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 I, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 -CF 2 I, BrCF 2 -CF 2 -CF 2 -CF 2 Br , BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 Br, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 Br, etc. are preferred, and ClCF 2 -CFCl-CF 2 -CF 2 I, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 I, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 -CF 2 I, etc. are preferred.

該一般式(2)所示化合物之使用量，由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，對於後述鋅或者鋅合金1莫耳而言，以0.05～30莫耳為佳，以0.1～10莫耳為較佳，以0.2～5莫耳為更佳。The use amount of the compound represented by the general formula (2) can obtain perfluoroalkadiene compounds in a higher yield under the condition that the generation of difficult-to-separate impurities can be further reduced. For the following zinc or zinc 1 mol of the alloy is preferably 0.05-30 mol, more preferably 0.1-10 mol, more preferably 0.2-5 mol.

對於鋅或者鋅合金，作為使用鋅合金時所含有的元素，例如可舉出鉛、鎘、鐵等。且，於市售的鋅中，有時含有鉛、鎘、鐵等雜質。本發明揭示中亦包含含有這些雜質者。Regarding zinc or a zinc alloy, examples of elements contained in the case of using a zinc alloy include lead, cadmium, iron, and the like. In addition, impurities such as lead, cadmium, and iron may be contained in commercially available zinc. Those containing these impurities are also included in the disclosure of the present invention.

作為有機溶劑，特別由可溶解一般式(2)所示化合物等之觀點來看，以非極性有機溶劑為佳。該有機溶劑，由可抑制自反應系內的含氮化合物之揮發，且可使全氟鏈烷二烯化合物之產率特別提高的觀點來看，沸點在含氮化合物之沸點以下者為佳。作為如此有機溶劑，例如可舉出庚烷、己烷、苯、甲苯、二甲苯等芳香族烴化合物；四氫呋喃、二乙基醚等醚化合物等。As the organic solvent, a non-polar organic solvent is particularly preferable from the viewpoint of dissolving the compound represented by the general formula (2). The organic solvent preferably has a boiling point lower than that of the nitrogen-containing compound from the standpoint of suppressing volatilization of the nitrogen-containing compound from the reaction system and particularly improving the yield of the perfluoroalkadiene compound. Examples of such organic solvents include aromatic hydrocarbon compounds such as heptane, hexane, benzene, toluene, and xylene; ether compounds such as tetrahydrofuran and diethyl ether; and the like.

有機溶劑之使用量，若為溶劑量即可並無特別限制，對於鋅或者鋅合金1莫耳而言以0.01～10莫耳為佳，以0.1～5莫耳為較佳。The amount of the organic solvent used is not particularly limited as long as it is the amount of the solvent. For 1 mol of zinc or zinc alloy, it is preferably 0.01-10 mol, more preferably 0.1-5 mol.

作為含氮化合物，若為含有氮原子之化合物即可，並無特別限定，例如可舉出醯胺化合物(N,N-二甲基甲醯胺、N,N-二異丙基甲醯胺等)、胺化合物(三乙基胺等)、吡啶化合物(吡啶、甲基吡啶、N-甲基-2-吡咯啶酮等)、喹啉化合物(喹啉、甲基喹啉等)等。這些含氮化合物可單獨使用，亦可組合2種以上而使用。其中亦由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，以醯胺化合物為佳，以N,N-二甲基甲醯胺為較佳。The nitrogen-containing compound is not particularly limited as long as it is a compound containing a nitrogen atom. For example, amide compounds (N,N-dimethylformamide, N,N-diisopropylformamide, etc.), amine compounds (triethylamine, etc.), pyridine compounds (pyridine, picoline, N-methyl-2-pyrrolidone, etc.), quinoline compounds (quinoline, methylquinoline, etc.), and the like. These nitrogen-containing compounds may be used alone or in combination of two or more. Among them, from the point of view of obtaining perfluoroalkadiene compounds in higher yields while reducing the amount of difficult-to-separate impurities, amide compounds are preferred, and N,N-dimethylformaldehyde is preferred. Amides are preferred.

該含氮化合物亦包含在常溫下為液體之化合物，但由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，以非作為溶劑而作為添加劑使用(少量使用)者為佳。含氮化合物之使用量對於鋅或者鋅合金1莫耳而言，以0.25～4莫耳為佳，以0.5～2莫耳為較佳。The nitrogen-containing compound also includes compounds that are liquid at normal temperature, but from the viewpoint of obtaining perfluoroalkadiene compounds in higher yields while reducing the amount of difficult-to-separate impurities, it is not necessary to do so. It is preferable to use as an additive (a small amount) as a solvent. The amount of the nitrogen-containing compound used is preferably 0.25-4 moles, more preferably 0.5-2 moles, relative to 1 mole of zinc or zinc alloy.

本發明揭示的製造方法中，由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，上述混合步驟係將含有鋅或者鋅合金以及有機溶劑的溶液、含氮化合物與前述一般式(2)所示化合物以逐次方式混合者為佳。作為如此混合步驟，例如混合含有鋅或者鋅合金以及有機溶劑的溶液與含氮化合物，特別對於含有鋅或者鋅合金以及有機溶劑之溶液，可添加含氮化合物。對於含有鋅或者鋅合金以及有機溶劑之溶液，各成分之含有量以調整至滿足上述各成分的含有比例者為佳。且，將一般式(2)所示化合物在後面步驟進行混合(特別為添加)時，在考慮要混合(特別為添加)的預定一般式(2)所示化合物之量時，可調整各成分的含有量者為佳。In the production method disclosed in the present invention, from the viewpoint of obtaining perfluoroalkanediene compounds in a higher yield while reducing the amount of impurities that are difficult to separate, the above-mentioned mixing step will contain zinc or zinc alloy And the solution of the organic solvent, the nitrogen-containing compound and the compound represented by the aforementioned general formula (2) are preferably mixed successively. As such a mixing step, for example, a solution containing zinc or a zinc alloy and an organic solvent is mixed with a nitrogen-containing compound, and particularly a nitrogen-containing compound may be added to a solution containing zinc or a zinc alloy and an organic solvent. For a solution containing zinc or zinc alloy and an organic solvent, it is preferable to adjust the content of each component to satisfy the above-mentioned content ratio of each component. And, when the compound represented by the general formula (2) is mixed (especially added) in a later step, when considering the amount of the compound represented by the predetermined general formula (2) to be mixed (especially added), each component can be adjusted The content of those is better.

在混合含有鋅或者鋅合金以及有機溶劑的溶液與含氮化合物(對於含有鋅或者鋅合金以及有機溶劑之溶液添加含氮化合物)時，將含有鋅或者鋅合金以及有機溶劑的溶液以較佳溫度50～200℃，更佳溫度100～150℃下，與含氮化合物進行混合者為佳。特別將含有鋅或者鋅合金以及有機溶劑的溶液一邊加熱至上述溫度，一邊添加含氮化合物者為佳。又，將含有鋅或者鋅合金以及有機溶劑的溶液一邊進行迴流一般添加含氮化合物時，因溶劑比反應溫度低，故成為反應溫度時會揮發，而將此冷卻後又可回到反應器。將含有鋅或者鋅合金以及有機溶劑之溶液一邊進行迴流一邊添加含氮化合物時，將含有鋅或者鋅合金以及有機溶劑的溶液在迴流溫度下進行加熱者為最佳。When mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound (a nitrogen-containing compound is added to a solution containing zinc or a zinc alloy and an organic solvent), the solution containing zinc or a zinc alloy and an organic solvent is heated at a preferred temperature 50-200°C, more preferably at a temperature of 100-150°C, preferably mixed with nitrogen-containing compounds. In particular, it is preferable to add a nitrogen-containing compound while heating a solution containing zinc or a zinc alloy and an organic solvent to the above-mentioned temperature. In addition, when a solution containing zinc or zinc alloy and an organic solvent is refluxed, when a nitrogen-containing compound is generally added, since the solvent is lower than the reaction temperature, it will volatilize at the reaction temperature, and it can be returned to the reactor after cooling. When adding a nitrogen-containing compound while refluxing a solution containing zinc or a zinc alloy and an organic solvent, it is best to heat the solution containing zinc or a zinc alloy and an organic solvent at the reflux temperature.

有機溶劑之沸點若在含氮化合物之沸點以下，於加熱含有鋅或者鋅合金以及有機溶劑之溶液後，因可使將該溶液與含氮化合物時更容易混合故較佳。If the boiling point of the organic solvent is lower than that of the nitrogen-containing compound, it is preferable to mix the solution with the nitrogen-containing compound after heating the solution containing zinc or zinc alloy and the organic solvent.

加熱(特別在迴流溫度下進行加熱)後，混合含有鋅或者鋅合金以及有機溶劑的溶液與含氮化合物，例如於含有鋅或者鋅合金以及有機溶劑的溶液中添加含氮化合物時，該添加速度(滴下速度)，由更減少難分離的雜質之生成量，且可更高產率下得到一般式(1)所示全氟鏈烷二烯化合物之觀點來看，對於鋅或者鋅合金1莫耳而言以0.1～600mol/小時為佳，以0.33～60mol/小時為較佳。添加時間為反應可充分進行的程度者為佳，特別以添加含氮化合物的總量調整成為上述範圍者為佳。具體的添加時間以0.002～10小時為佳，以0.02～3小時為較佳。After heating (especially heating at reflux temperature), mix a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound, for example, when adding a nitrogen-containing compound to a solution containing zinc or a zinc alloy and an organic solvent, the addition rate (Dropping speed), from the point of view of reducing the amount of impurities that are difficult to separate and obtaining the perfluoroalkadiene compound represented by the general formula (1) at a higher yield, for 1 mole of zinc or zinc alloy More preferably, it is 0.1 to 600 mol/hour, more preferably 0.33 to 60 mol/hour. The addition time is preferably such that the reaction can proceed sufficiently, and it is particularly preferable that the total amount of the nitrogen-containing compound to be added is adjusted to the above-mentioned range. The specific adding time is preferably 0.002-10 hours, more preferably 0.02-3 hours.

對於上述本發明揭示的製造方法，混合含有鋅或者鋅合金以及有機溶劑的溶液與含氮化合物(特別為對於含有鋅或者鋅合金以及有機溶劑的溶液添加含氮化合物)時，基質之一般式(2)所示化合物可為，將與含有鋅或者鋅合金以及有機溶劑的溶液進行混合後所得之混合液，與含氮化合物進行混合(以下有時稱為「基質前添加」)，亦可為混合含有鋅或者鋅合金以及有機溶劑的溶液與含氮化合物(特別為於含有鋅或者鋅合金以及有機溶劑的溶液中添加含氮化合物)後，將如此所得之混合液與基質之一般式(2)所示化合物進行混合(特別為於如此所得之混合液中添加基質之一般式(2)所示化合物)(以下有時稱為「基質後添加」)。此等之中，亦以將鋅或者鋅合金與含氮化合物預先進行反應，使一般式(2)所示化合物與含氮化合物進行反應而可進一步抑制難分離的雜質之生成，結果由全氟鏈烷二烯化合物之產率亦更提高的觀點來看，基質後添加為特佳。For the manufacturing method disclosed in the present invention above, when mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound (especially adding a nitrogen-containing compound to a solution containing zinc or a zinc alloy and an organic solvent), the general formula of the matrix ( 2) The compound shown may be a mixed liquid obtained by mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound (hereinafter sometimes referred to as "pre-substrate addition"), or may be After mixing a solution containing zinc or zinc alloy and an organic solvent and a nitrogen-containing compound (especially adding a nitrogen-containing compound to a solution containing zinc or a zinc alloy and an organic solvent), the general formula (2 ) (in particular, the compound represented by the general formula (2) in which a matrix is added to the resulting mixture) (hereinafter sometimes referred to as "substrate post-addition"). Among these, zinc or zinc alloy is also reacted with nitrogen-containing compounds in advance, and the compound represented by general formula (2) is reacted with nitrogen-containing compounds to further suppress the formation of difficult-to-separate impurities. From the viewpoint of further improving the yield of the alkanediene compound, post-addition of the substrate is particularly preferable.

採用基質前添加時，於含有鋅或者鋅合金以及有機溶劑的溶液中所含的一般式(2)所示化合物之含有量，以調整為滿足上述各成分含有比例者為佳。When pre-adding the substrate is used, the content of the compound represented by the general formula (2) contained in the solution containing zinc or zinc alloy and an organic solvent is preferably adjusted to satisfy the above-mentioned content ratio of each component.

採用基質後添加時，於含有鋅或者鋅合金以及有機溶劑的溶液中添加含氮化合物後，於如此所得之混合液中添加基質之一般式(2)所示化合物的情況中之一般式(2)所示化合物的添加速度(滴下速度)，由更減少難分離的雜質之生成量，且可更高產率下得到一般式(1)所示全氟鏈烷二烯化合物之觀點來看，對於鋅或者鋅合金1莫耳而言，以0.05～30mol/小時為佳，以0.17～6mol/小時為較佳。添加時間以反應可充分進行的程度者為佳，特別以添加一般式(2)所示化合物的總量調整至成為上述範圍者為佳。具體的添加時間以0.02～10小時為佳，以0.08～3小時為較佳。When adding after the matrix is used, after adding the nitrogen-containing compound to the solution containing zinc or zinc alloy and organic solvent, the general formula (2) in the case of adding the compound represented by the general formula (2) of the matrix to the mixed solution obtained in this way ) The addition rate (dropping rate) of the compound shown in ) is from the point of view of reducing the amount of impurities that are difficult to separate and obtaining the perfluoroalkadiene compound shown in the general formula (1) at a higher yield. For 1 mol of zinc or zinc alloy, it is preferably 0.05-30 mol/hour, more preferably 0.17-6 mol/hour. The addition time is preferably such that the reaction can proceed sufficiently, and it is particularly preferable to adjust the total amount of the compound represented by the general formula (2) to be within the above-mentioned range. The specific adding time is preferably 0.02-10 hours, more preferably 0.08-3 hours.

本發明揭示中，於反應時可使用含碘無機材料。藉此，可更減少難分離的雜質之生成量，且可更高產率下得到一般式(1)所示全氟鏈烷二烯化合物。In the disclosure of the present invention, iodine-containing inorganic materials can be used in the reaction. Thereby, the amount of difficult-to-separate impurities can be further reduced, and the perfluoroalkadiene compound represented by the general formula (1) can be obtained in a higher yield.

作為含碘無機材料，若為含有碘原子的無機材料即可，並無特別限制，例如可舉出碘；典型金屬碘化物(碘化鈉、碘化鉀、碘化鎂、碘化鈣等)、過渡金屬碘化物(碘化鋅等)等金屬碘化物等。且，依據本發明揭示的製造方法，於生成物中作為雜質而生成鹵化鋅(氟化鋅、氯化鋅及碘化鋅之混合物)。將作為該生成物中所含的雜質之鹵化鋅作為含碘無機材料使用，亦可再利用於本發明揭示之製造方法。這些含碘無機材料可單獨使用，亦可組合2種以上而使用。其中亦由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，碘、過渡金屬碘化物、作為藉由本發明揭示之製造方法的生成物中之雜質的鹵化鋅等為佳，以碘為較佳。As the iodine-containing inorganic material, as long as it is an inorganic material containing an iodine atom, it is not particularly limited, for example, iodine; typical metal iodides (sodium iodide, potassium iodide, magnesium iodide, calcium iodide, etc.), transition Metal iodides such as metal iodides (zinc iodide, etc.), and the like. And, according to the production method disclosed in the present invention, zinc halide (a mixture of zinc fluoride, zinc chloride, and zinc iodide) is produced as an impurity in the product. Zinc halide, which is an impurity contained in the product, is used as an iodine-containing inorganic material and can be reused in the production method disclosed in the present invention. These iodine-containing inorganic materials may be used alone or in combination of two or more. Among them, from the viewpoint of obtaining perfluoroalkadiene compounds in a higher yield while reducing the amount of difficult-to-separate impurities, iodine, transition metal iodide, and the production method disclosed by the present invention are The impurity in the product is preferably zinc halide and the like, and iodine is more preferable.

該含碘無機化合物之使用量，由可在更減低難分離的雜質之生成量下，可更高產率地得到全氟鏈烷二烯化合物之觀點來看，對於鋅或者鋅合金1莫耳而言為0.0005莫耳以上，且以有機溶劑之溶解度以下者為佳，對於鋅或者鋅合金1莫耳而言以0.001～0.1莫耳為較佳。The usage amount of the iodine-containing inorganic compound is from the point of view that the perfluoroalkadiene compound can be obtained in a higher yield while reducing the generation amount of difficult-to-separate impurities. For 1 mole of zinc or zinc alloy It is more than 0.0005 mol and preferably less than the solubility of the organic solvent. For 1 mol of zinc or zinc alloy, it is preferably 0.001 to 0.1 mol.

本發明揭示中使用含碘無機材料時，對於採用基質前添加及基質後添加中任一情況，欲更減少難分離的雜質之生成量，且更高產率地得到一般式(1)所示全氟鏈烷二烯化合物，使含碘無機材料含於含有鋅或者鋅合金與有機溶劑之溶液中者為佳。此時，於含有鋅或者鋅合金以及有機溶劑的溶液中所含之含碘無機材料的含有量以調整至滿足上述各成分的含有比例者為佳。When using iodine-containing inorganic materials in the disclosure of the present invention, for any case of using the pre-addition of the matrix and the post-addition of the matrix, it is desired to reduce the amount of impurities that are difficult to separate, and to obtain the complete compound shown in the general formula (1) with a higher yield. The fluoroalkanediene compound is preferably an iodine-containing inorganic material contained in a solution containing zinc or a zinc alloy and an organic solvent. In this case, the content of the iodine-containing inorganic material contained in the solution containing zinc or zinc alloy and an organic solvent is preferably adjusted to satisfy the content ratio of each of the above components.

且，上述以外之反應條件並無特別限制，例如反應環境以惰性氣體環境(氮氣環境、氬氣環境等)為佳，反應時間(最高到達溫度中之維持時間)可設定為可充分進行反應的程度。反應終了後，依據常法，進行純化處理，可得到一般式(1)所示全氟鏈烷二烯化合物。Moreover, the reaction conditions other than the above are not particularly limited. For example, the reaction environment is preferably an inert gas environment (nitrogen environment, argon environment, etc.), and the reaction time (the maintenance time in the highest reaching temperature) can be set to allow sufficient reaction. degree. After the reaction is completed, the perfluoroalkadiene compound represented by the general formula (1) can be obtained by purifying according to the usual method.

依據如此本發明揭示的製造方法，可得到進一步減少難分離的雜質之生成量且提高一般式(1)所示全氟鏈烷二烯化合物之產率者，減低難分離的雜質之分離的勞力，同時亦可有效率地獲得一般式(1)所示全氟鏈烷二烯化合物。且，難分離之雜質，例如獲得作為一般式(1)所示全氟鏈烷二烯化合物之六氟丁二烯時，可舉出1,1,1,2,4,4,4-七氟-2-丁烯(CF3 CF=CHCF3 )等。According to the production method disclosed by the present invention, it is possible to further reduce the amount of difficult-to-separate impurities and increase the yield of perfluoroalkanediene compounds represented by the general formula (1), reducing the labor of separating difficult-to-separate impurities , and at the same time, the perfluoroalkadiene compound represented by the general formula (1) can also be efficiently obtained. And, impurity that is difficult to separate, for example, when obtaining hexafluorobutadiene as a perfluoroalkanadiene compound represented by the general formula (1), 1,1,1,2,4,4,4-7 Fluoro-2-butene (CF 3 CF=CHCF 3 ), etc.

如此所得之一般式(1)所示全氟鏈烷二烯化合物，以欲形成半導體、液晶等最先端微細結構的蝕刻氣體作為開始，可有效利用於冷媒、熱移動媒體、發泡劑、樹脂單體等各種用途上。The perfluoroalkadiene compound represented by the general formula (1) obtained in this way can be effectively used in refrigerants, heat transfer media, foaming agents, resins, etc. Various uses such as monomers.

如此，可得到一般式(1)所示全氟鏈烷二烯化合物，但有時可以含有一般式(1)所示全氟鏈烷二烯化合物、一般式(3)：

Figure 02_image021
[式中，n與前述相同] 所示化合物、一般式(4A)：
Figure 02_image023
[式中，n與前述相同。X1 及X2 表示相同或相異的鹵素原子。但，未有X1 及X2 的雙方為氟原子之情況] 所示化合物，及/或一般式(4B)：
Figure 02_image025
[式中，n與前述相同。X2 表示鹵素原子] 所示化合物與一般式(5)：
Figure 02_image027
[式中，n與前述相同。X1 及X2 表示相同或相異的鹵素原子。但，未有X1 及X2 的雙方為氟原子之情況]所示化合物的全氟鏈烷二烯組成物之形式獲得。In this way, the perfluoroalkadiene compound shown in the general formula (1) can be obtained, but sometimes it may contain the perfluoroalkanadiene compound shown in the general formula (1), and the general formula (3):
Figure 02_image021
[In the formula, n is the same as above] The compound shown, general formula (4A):
Figure 02_image023
[wherein, n is the same as above. X1 and X2 represent the same or different halogen atoms. However, there is no case where both of X1 and X2 are fluorine atoms] the compound shown, and/or the general formula (4B):
Figure 02_image025
[wherein, n is the same as above. X 2 represents a halogen atom] The compound shown in the general formula (5):
Figure 02_image027
[wherein, n is the same as above. X1 and X2 represent the same or different halogen atoms. However, there is no case where both X1 and X2 are fluorine atoms] as a perfluoroalkadiene composition of the compound represented.

作為滿足如此條件的一般式(3)所示化合物，例如可舉出CF2 =CF-CF2 -CF2 H、CF2 =CF-CF2 -CF2 -CF2 H、CF2 =CF-CF2 -CF2 -CF2 -CF2 H等。Examples of compounds represented by the general formula (3) satisfying such conditions include CF 2 ═CF-CF 2 -CF 2 H, CF 2 ═CF-CF 2 -CF 2 -CF 2 H, CF 2 ═CF- CF 2 -CF 2 -CF 2 -CF 2 H, etc.

對於一般式(4A)，X1 及X2 為鹵素原子，可舉出氟原子、氯原子、溴原子、碘原子等。X1 及X2 可相同亦可相異。但，與一般式(2)同樣地，未有X1 及X2 之雙方成為氟原子之情況。與一般式(2)同樣下，作為X1 ，以氯原子、溴原子、碘原子等(特別為氯原子、溴原子等)為佳，作為X2 ，以氟原子、氯原子、溴原子等(特別為氟原子、氯原子等)為佳。作為如此一般式(4A)所示化合物，例如可舉出ClCF2 -CFCl-CF=CF2 、ClCF2 -CFCl-CF2 -CF=CF2 、ClCF2 -CFCl-CF2 -CF2 -CF=CF2 、ICF2 -CF2 -CF=CF2 、ICF2 -CF2 -CF2 -CF=CF2 、ICF2 -CF2 -CF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF2 -CF2 -CF=CF2 等，與一般式(2)的同樣理由下，以ClCF2 -CFCl-CF=CF2 、ClCF2 -CFCl-CF2 -CF=CF2 、ClCF2 -CFCl-CF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF2 -CF=CF2 、BrCF2 -CF2 -CF2 -CF2 -CF=CF2 等為佳，以ClCF2 -CFCl-CF=CF2 、ClCF2 -CFCl-CF2 -CF=CF2 、ClCF2 -CFCl-CF2 -CF2 -CF=CF2 等為較佳。 In the general formula (4A), X1 and X2 are halogen atoms, and examples thereof include fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms. X1 and X2 may be the same or different. However, like the general formula ( 2 ), there is no case where both of X1 and X2 become fluorine atoms. In the same manner as in general formula (2), chlorine atom, bromine atom, iodine atom, etc. (especially chlorine atom, bromine atom, etc.) are preferred as X 1 , and fluorine atom, chlorine atom, bromine atom, etc. are preferred as X 2 . (In particular, a fluorine atom, a chlorine atom, etc.) are preferable. Examples of the compound represented by the general formula (4A) include ClCF 2 -CFCl-CF=CF 2 , ClCF 2 -CFCl-CF 2 -CF=CF 2 , ClCF 2 -CFCl-CF 2 -CF 2 -CF =CF 2 , ICF 2 -CF 2 -CF=CF 2 , ICF 2 -CF 2 -CF 2 -CF=CF 2 , ICF 2 -CF 2 -CF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF 2 -CF 2 -CF=CF 2 , etc., for the same reason as the general formula (2), With ClCF 2 -CFCl-CF=CF 2 , ClCF 2 -CFCl-CF 2 -CF=CF 2 , ClCF 2 -CFCl-CF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF 2 -CF=CF 2 , BrCF 2 -CF 2 -CF 2 -CF 2 -CF=CF 2 are preferred, ClCF 2 -CFCl-CF=CF 2 , ClCF 2 -CFCl -CF 2 -CF=CF 2 , ClCF 2 -CFCl-CF 2 -CF 2 -CF=CF 2 etc. are preferred.

對於一般式(4B)，X2 為鹵素原子，可舉出氟原子、氯原子、溴原子、碘原子等。與一般式(2)同樣下，作為X2 ，以氟原子、氯原子、溴原子等(特別為氟原子、氯原子等)為佳。作為滿足如此條件的一般式(4B)所示化合物，例如可舉出HCF2 -CFCl-CF2 -CF2 H、HCF2 -CFCl-CF2 -CF2 -CF2 H、HCF2 -CFCl-CF2 -CF2 -CF2 -CF2 H、HCF2 -CF2 -CF2 -CF2 H、HCF2 -CF2 -CF2 -CF2 -CF2 H、HCF2 -CF2 -CF2 -CF2 -CF2 -CF2 H等，與一般式(2)的同樣理由下，以HCF2 -CFCl-CF2 -CF2 H、HCF2 -CFCl-CF2 -CF2 -CF2 H、HCF2 -CFCl-CF2 -CF2 -CF2 -CF2 H等為佳。In the general formula (4B), X2 is a halogen atom, and examples thereof include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom. Similar to the general formula (2), X 2 is preferably a fluorine atom, a chlorine atom, a bromine atom, etc. (especially a fluorine atom, a chlorine atom, etc.). Examples of compounds represented by general formula (4B) satisfying such conditions include HCF 2 -CFCl-CF 2 -CF 2 H, HCF 2 -CFCl-CF 2 -CF 2 -CF 2 H, HCF 2 -CFCl- CF 2 -CF 2 -CF 2 -CF 2 H, HCF 2 -CF 2 -CF 2 -CF 2 H, HCF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, HCF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, etc., for the same reason as the general formula (2), HCF 2 -CFCl-CF 2 -CF 2 H, HCF 2 -CFCl-CF 2 -CF 2 -CF 2 H , HCF 2 -CFCl-CF 2 -CF 2 -CF 2 -CF 2 H, etc. are preferred.

對於一般式(5)，X1 及X2 為鹵素原子，可舉出氟原子、氯原子、溴原子、碘原子等。X1 及X2 可相同亦可相異。但，與一般式(2)同樣地，未有X1 及X2 之雙方成為氟原子之情況。與一般式(2)同樣下，作為X1 ，以氯原子、溴原子、碘原子等(特別為氯原子、溴原子等)為佳，作為X2 ，以氟原子、氯原子、溴原子等(特別為氟原子、氯原子等)為佳。該一般式(5)所示化合物，雖為於基質的一般式(2)所示化合物中，因與CF2 X3 基鄰接的基為CF2 ，而所生成的化合物，但在液相中會大量產生，但於氣相中幾乎不存在，故僅分析收集缸之氣相時並未檢測出來。換言之，本發明揭示的全氟鏈烷二烯組成物係由存在於收集缸之氣相及液相的雙方之雜質所構成者，僅自收集缸的氣相進行採取時，無法得到本發明揭示之全氟鏈烷二烯組成物。作為滿足如此條件之一般式(5)所示化合物，例如可舉出ClCF2 -CFCl-CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 H、ICF2 -CF2 -CF2 -CF2 H、ICF2 -CF2 -CF2 -CF2 -CF2 H、ICF2 -CF2 -CF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 -CF2 -CF2 H等，與一般式(2)的同樣理由下，以ClCF2 -CFCl-CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 -CF2 H、BrCF2 -CF2 -CF2 -CF2 -CF2 -CF2 H等為佳，以ClCF2 -CFCl-CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 H、ClCF2 -CFCl-CF2 -CF2 -CF2 -CF2 H等為較佳。In the general formula ( 5 ), X1 and X2 are halogen atoms, and examples thereof include fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms. X1 and X2 may be the same or different. However, like the general formula ( 2 ), there is no case where both of X1 and X2 become fluorine atoms. In the same manner as in general formula (2), chlorine atom, bromine atom, iodine atom, etc. (especially chlorine atom, bromine atom, etc.) are preferred as X 1 , and fluorine atom, chlorine atom, bromine atom, etc. are preferred as X 2 . (In particular, a fluorine atom, a chlorine atom, etc.) are preferable. Although the compound represented by the general formula (5) is a compound generated because the group adjacent to the CF 2 X 3 group is CF 2 in the compound represented by the general formula (2) of the substrate, it is in the liquid phase It will be produced in large quantities, but it hardly exists in the gas phase, so it is not detected when only analyzing the gas phase of the collection cylinder. In other words, the perfluoroalkanadiene composition disclosed in the present invention is composed of impurities present in both the gas phase and the liquid phase of the collection tank, and the disclosure of the present invention cannot be obtained when it is only collected from the gas phase of the collection tank. Composition of perfluoroalkanediene. Examples of compounds represented by the general formula (5) satisfying such conditions include ClCF 2 -CFCl-CF 2 -CF 2 H, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 H, ClCF 2 -CFCl- CF 2 -CF 2 -CF 2 -CF 2 H, ICF 2 -CF 2 -CF 2 -CF 2 H, ICF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, ICF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, etc., for the same reason as in general formula (2), ClCF 2 -CFCl-CF 2 -CF 2 H, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 H, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 H, BrCF 2 -CF 2 -CF 2 -CF 2 -CF 2 -CF 2 H is preferred, ClCF 2 -CFCl-CF 2 -CF 2 H, ClCF 2 -CFCl-CF 2 -CF 2 -CF 2 H, ClCF 2 -CFCl -CF 2 -CF 2 -CF 2 -CF 2 H and the like are preferred.

對於該本發明揭示之全氟鏈烷二烯組成物，將本發明揭示的全氟鏈烷二烯組成物之總量作為100莫耳%，一般式(1)所示全氟鏈烷二烯化合物的含有量以30～99.8莫耳%(特別為50～99莫耳%)為佳，一般式(3)所示化合物的含有量以0.1～30莫耳%(特別為2～25莫耳%)為佳，一般式(4A)及/或(4B)所示化合物的總含有量以0.01～5莫耳%(特別為0.02～3莫耳%)為佳，一般式(5)所示化合物的含有量以0.05～35莫耳%(特別為0.1～5莫耳%)為佳。又，對於本發明揭示之全氟鏈烷二烯組成物，上述以外之成分(其他成分)的含有量以0～30莫耳%(特別為0.01～10莫耳%)為佳。本發明揭示中，基質的一般式(2)所示化合物中，因與CF2 X3 基鄰接的基為CF2 ，故一般式(5)所示化合物可在液相中生成而獲得，但即使在此情況下亦可減少所生成的一般式(5)所示化合物之量。又，因於其他成分中含有難分離的雜質(作為一般式(1)所示全氟鏈烷二烯化合物，得到六氟丁二烯時為1,1,1,2,4,4,4-七氟-2-丁烯(CF3 CF=CHCF3 )等)，故極力減少其他成分之含有量者為佳。For the perfluoroalkane diene composition disclosed in the present invention, the total amount of the perfluoroalkane diene composition disclosed in the present invention is taken as 100 mole %, and the perfluoroalkane diene represented by the general formula (1) The content of the compound is preferably 30-99.8 mole % (especially 50-99 mole %), and the content of the compound shown in general formula (3) is 0.1-30 mole % (especially 2-25 mole %). %), the total content of the compounds represented by the general formula (4A) and/or (4B) is preferably 0.01-5 mole % (especially 0.02-3 mole %), and the general formula (5) The content of the compound is preferably 0.05 to 35 mol % (particularly 0.1 to 5 mol %). In addition, in the perfluoroalkadiene composition disclosed in the present invention, the content of components other than the above (other components) is preferably 0 to 30 mol % (particularly 0.01 to 10 mol %). In the disclosure of the present invention, among the compounds represented by the general formula (2) of the matrix, the group adjacent to the CF 2 X 3 group is CF 2 , so the compound represented by the general formula (5) can be produced in the liquid phase and obtained, but Even in this case, the amount of the compound represented by the general formula (5) produced can be reduced. Also, because other components contain impurities that are difficult to separate (as the perfluoroalkadiene compound represented by the general formula (1), when hexafluorobutadiene is obtained, it is 1, 1, 1, 2, 4, 4, 4 -Heptafluoro-2-butene (CF 3 CF=CHCF 3 ), etc.), so it is better to reduce the content of other components as much as possible.

如此本發明揭示之全氟鏈烷二烯組成物與上述全氟鏈烷二烯化合物單獨之情況同樣時，將欲形成半導體、液晶等最先端的微細結構之蝕刻氣體作為開始，可有效利用於冷媒、熱移動媒體、發泡劑、樹脂單體等各種用途上。In this way, the perfluoroalkadiene composition disclosed in the present invention is the same as the case of the above-mentioned perfluoroalkadiene compound alone, starting with the etching gas for forming the most advanced microstructures such as semiconductors and liquid crystals, it can be effectively used in Various applications such as refrigerants, heat transfer media, foaming agents, and resin monomers.

以上雖說明本發明揭示的實施形態，但不脫離申請專利範圍之主旨及範圍下，可為形態或詳細的多樣化變更。 [實施例]Although the embodiments disclosed in the present invention have been described above, various changes in form or details can be made without departing from the gist and scope of the claims. [Example]

以下表示實施例明確本發明揭示的特徵。但本發明揭示並未受到這些實施例限定。Examples are shown below to clarify the features disclosed in the present invention. However, the disclosure of the present invention is not limited by these examples.

實施例1：ClCF2 -CFCl-CF2 -CF2 I；前添加；無含碘無機材料 於連結有冷卻至-78℃的捕集器之附有凝結器的茄形燒瓶中，加入200g(0.53mol)的二甲苯及34.93g(0.53mol)的鋅，進一步加入92g(0.24mol)的原料(ClCF2 CFClCF2 CF2 I)，攪拌下，使內溫加熱至140℃為止。內溫成為一定後，一邊迴流一般將N,N-二甲基甲醯胺(DMF)以滴下速度0.53mol/小時(對鋅1莫耳為1mol/小時)進行1小時滴入，一邊攪拌一邊繼續進行 3小時加熱迴流。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為46莫耳%、CF2 =CF-CF2 -CF2 H為0.35莫耳%、ClCF2 -CFCl-CF=CF2 為1.7莫耳%、ClCF2 -CFCl-CF2 -CF2 H為26莫耳%，其他副產物(CF3 CF =CHCF3 等)合計為26莫耳%。Example 1: ClCF 2 -CFCl-CF 2 -CF 2 I; pre-added; no iodine-containing inorganic material In the eggplant-shaped flask with a condenser connected to a trap cooled to -78°C, add 200 g ( 0.53 mol) of xylene and 34.93 g (0.53 mol) of zinc, and further 92 g (0.24 mol) of raw material (ClCF 2 CFClCF 2 CF 2 I) were added, and the inner temperature was heated to 140° C. while stirring. After the internal temperature becomes constant, N,N-dimethylformamide (DMF) is usually dropped for 1 hour at a dropping rate of 0.53 mol/hour (1 mol/hour for 1 mol of zinc) while refluxing, while stirring. Heating to reflux was continued for 3 hours. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 46 mol%, CF 2 =CF-CF 2 -CF 2 H is 0.35 mol%, ClCF 2 -CFCl-CF=CF 2 is 1.7 mol%, ClCF 2 -CFCl- CF 2 -CF 2 H is 26 mol%, and other by-products (CF 3 CF =CHCF 3 , etc.) are 26 mol% in total.

實施例2：ClCF2 -CFCl-CF2 -CF2 I；後添加；無含碘無機材料 於連結有冷卻至-78℃的捕集器之附有凝結器的茄形燒瓶中，加入200g(0.53mol)的二甲苯、34.93g(0.53mol)的鋅，攪拌下，使內溫加熱至140℃為止。內溫成為一定後，一邊迴流一般將N,N-二甲基甲醯胺(DMF)以滴下速度0.52mol/小時(對鋅1莫耳為1.04mol/小時)進行1小時滴入，一邊攪拌一邊繼續加熱迴流0.5小時。其次，一邊迴流，一邊將原料(ClCF2 -CFCl-CF2 -CF2 I)以滴下速度0.24mol/小時(對鋅1莫耳為0.48mol/小時)進行1小時滴入，一邊攪拌，一邊繼續進行3小時加熱迴流而使其反應。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為78莫耳%、CF2 =CF-CF2 -CF2 H為14莫耳%、ClCF2 -CFCl-CF=CF2 為0.66莫耳%、ClCF2 -CFCl-CF2 -CF2 H為1.5莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為5.9莫耳%。Example 2: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; no iodine-containing inorganic materials In the eggplant-shaped flask with a condenser connected to a trap cooled to -78°C, add 200 g ( 0.53 mol) of xylene and 34.93 g (0.53 mol) of zinc were stirred, and the inner temperature was heated to 140°C. After the internal temperature becomes constant, N,N-dimethylformamide (DMF) is usually dropped at a rate of 0.52 mol/hour (1.04 mol/hour for 1 mole of zinc) for 1 hour while refluxing, while stirring Heating to reflux was continued for 0.5 hours. Next, while refluxing, the raw material (ClCF 2 -CFCl-CF 2 -CF 2 I) was dropped at a dropping rate of 0.24 mol/hour (0.48 mol/hour for 1 mol of zinc) for 1 hour, and stirred. Heating to reflux was continued for 3 hours to make it react. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 78 mol%, CF 2 =CF-CF 2 -CF 2 H is 14 mol%, ClCF 2 -CFCl-CF=CF 2 is 0.66 mol%, ClCF 2 -CFCl- CF 2 -CF 2 H is 1.5 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 5.9 mol% in total.

實施例3：ClCF2 -CFCl-CF2 -CF2 I；後添加；ZnI2 0.18莫耳% 於含有鋅之二甲苯的溶液中，使其含有0.30g (0.001mol；對於鋅為0.18mol%)的ZnI2 以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為88莫耳%、CF2 =CF-CF2 -CF2 H為8.2莫耳%、ClCF2 -CFCl-CF=CF2 為0.051莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.32莫耳%，其他副產物(CF3 CF=CHCF3 等)為合計3.4莫耳%。Example 3: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; ZnI 2 0.18 mol % in a solution containing zinc in xylene, so that it contains 0.30 g (0.001 mol; 0.18 mol % for zinc ) except ZnI 2 , carry out the same treatment with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 88 mol%, CF 2 =CF-CF 2 -CF 2 H is 8.2 mol%, ClCF 2 -CFCl-CF=CF 2 is 0.051 mol%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.32 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 3.4 mol% in total.

實施例4：ClCF2 -CFCl-CF2 -CF2 I；後添加；ZnI2 0.6莫耳% 於含有鋅的二甲苯之溶液中，使其含有0.95g (0.003mol；對鋅為0.56mol%)的ZnI2 以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為91莫耳%、CF2 =CF-CF2 -CF2 H為6.8莫耳%、ClCF2 -CFCl-CF=CF2 為0.042莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.18莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為2.0莫耳%。Example 4: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; ZnI 2 0.6 mol % in a solution of xylene containing zinc, so that it contains 0.95 g (0.003 mol; 0.56 mol % for zinc ) except ZnI 2 , carry out the same treatment with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 91 mole%, CF 2 =CF-CF 2 -CF 2 H is 6.8 mole%, ClCF 2 -CFCl-CF=CF 2 is 0.042 mole%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.18 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 2.0 mol% in total.

實施例5：ClCF2 -CFCl-CF2 -CF2 I；後添加；ZnI2 1.6莫耳% 於含有鋅的二甲苯之溶液中，使其含有2.70g(0.53mol；對鋅為1.6mol%)的ZnI2 以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為93莫耳%、CF2 =CF-CF2 -CF2 H為5.6莫耳%、ClCF2 -CFCl-CF=CF2 為0.082莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.27莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為1.0莫耳%。Example 5: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; ZnI 2 1.6 mol % in a solution of xylene containing zinc, so that it contains 2.70 g (0.53 mol; 1.6 mol % for zinc ) except ZnI 2 , carry out the same treatment with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 93 mole%, CF 2 =CF-CF 2 -CF 2 H is 5.6 mole%, ClCF 2 -CFCl-CF=CF 2 is 0.082 mole%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.27 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 1.0 mol% in total.

實施例6：ClCF2 -CFCl-CF2 -CF2 I；後添加；I2 1.6莫耳% 於含有鋅的二甲苯之溶液中，使其含有2.20g (0.009mol；對鋅為1.6mol%)的I2 以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF =CF2 為96莫耳%、CF2 =CF-CF2 -CF2 H為2.6莫耳%、ClCF2 -CFCl-CF=CF2 為0.031莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.17莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為1.2莫耳%。Example 6: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; I 2 1.6 mol% in a solution of xylene containing zinc, so that it contains 2.20g (0.009mol; 1.6mol% for zinc ) except I 2 , carry out the same processing as in Example 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF =CF 2 is 96 mol%, CF 2 =CF-CF 2 -CF 2 H is 2.6 mol%, ClCF 2 -CFCl-CF=CF 2 is 0.031 mol%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.17 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 1.2 mol% in total.

實施例7：ClCF2 -CFCl-CF2 -CF2 I；後添加；NaI 1.6莫耳% 於含有鋅的二甲苯之溶液中，使其含有1.27g (0.0085mol；對鋅為1.6mol%)的NaI以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為91莫耳%、CF2 =CF-CF2 -CF2 H為6.1莫耳%、ClCF2 -CFCl-CF=CF2 為0.053莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.32莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為2.5莫耳%。Example 7: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; NaI 1.6 mol% in a solution of xylene containing zinc, so that it contains 1.27g (0.0085mol; 1.6mol% for zinc) Except the NaI, carry out the same treatment with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 91 mole%, CF 2 =CF-CF 2 -CF 2 H is 6.1 mole%, ClCF 2 -CFCl-CF=CF 2 is 0.053 mole%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.32 mol%, and other by-products (CF 3 CF=CHCF 3 , etc.) are 2.5 mol% in total.

實施例8：ClCF2 -CFCl-CF2 -CF2 I；後添加；NaI 3.2莫耳% 於含有鋅的二甲苯之溶液中，使其含有2.54g (0.017mol；對鋅為3.2mol%)的NaI以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為94莫耳%、CF2 =CF-CF2 -CF2 H為5.1莫耳%、ClCF2 -CFCl-CF=CF2 為0.044莫耳%、ClCF2 -CFCl-CF2 -CF2 H為0.12莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為0.74莫耳%。Example 8: ClCF 2 -CFCl-CF 2 -CF 2 I; post-addition; NaI 3.2 mol% in a solution of xylene containing zinc, so that it contains 2.54g (0.017mol; 3.2mol% for zinc) Except the NaI, carry out the same treatment with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 94 mol%, CF 2 =CF-CF 2 -CF 2 H is 5.1 mol%, ClCF 2 -CFCl-CF=CF 2 is 0.044 mol%, ClCF 2 -CFCl- CF 2 -CF 2 H is 0.12 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 0.74 mol% in total.

實施例9：ICF2 -CF2-CF2 -CF2 I；前添加；無含碘無機材料 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用ICF2 -CF2-CF2 -CF2 I以外，進行與實施例1之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為35莫耳%、CF2 =CF-CF2 -CF2 H為10莫耳%、HCF2 -CF2 -CF2 -CF2 H為4.2莫耳%、ICF2 -CF2 -CF2 -CF2 H為30莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為21莫耳%。Example 9: ICF 2 -CF2-CF 2 -CF 2 I; pre-added; no iodine-containing inorganic material as the matrix ClCF 2 -CFCl-CF 2 -CF 2 I was not used, and ICF 2 -CF2-CF 2 -CF was used Except 2 I, carry out the same processing with embodiment 1. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 35 mol%, CF 2 =CF-CF 2 -CF 2 H is 10 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 4.2 mol%, ICF 2 -CF 2 -CF 2 -CF 2 H is 30 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 21 mol% in total.

實施例10：ICF2 -CF2-CF2 -CF2 I；後添加；無含碘無機材料 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用ICF2 -CF2-CF2 -CF2 I以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為63莫耳%、CF2 =CF-CF2 -CF2 H為25莫耳%、HCF2 -CF2 -CF2 -CF2 H為2.2莫耳%、ICF2 -CF2 -CF2 -CF2 H為2.1莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為7.7莫耳%。Example 10: ICF 2 -CF2-CF 2 -CF 2 I; post-addition; no iodine-containing inorganic material as the matrix ClCF 2 -CFCl-CF 2 -CF 2 I was not used, and ICF 2 -CF2-CF 2 -CF was used Except 21 , carry out the same processing with embodiment 2. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 63 mol%, CF 2 =CF-CF 2 -CF 2 H is 25 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 2.2 mol%, ICF 2 -CF 2 -CF 2 -CF 2 H is 2.1 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 7.7 mol% in total.

實施例11：ICF2 -CF2-CF2 -CF2 I；後添加；ZnI2 1.6莫耳% 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用ICF2 -CF2-CF2 -CF2 I，於含有鋅的二甲苯之溶液中，使2.70g (0.53mol；對鋅為1.6mol%)的ZnI2 含有以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為87莫耳%、CF2 =CF-CF2 -CF2 H為5.4莫耳%、HCF2 -CF2 -CF2 -CF2 H為2.2莫耳%、ICF2 -CF2 -CF2 -CF2 H為2.1莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為3.3莫耳%。Example 11: ICF 2 -CF2-CF 2 -CF 2 I; post-addition; ZnI 2 1.6 mol% ClCF 2 -CFCl-CF 2 -CF 2 I was not used as the matrix, but ICF 2 -CF2-CF 2 - CF 2 I was treated in the same manner as in Example 2, except that 2.70 g (0.53 mol; 1.6 mol %) of ZnI 2 was contained in a zinc-containing xylene solution. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 87 mol%, CF 2 =CF-CF 2 -CF 2 H is 5.4 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 2.2 mol%, ICF 2 -CF 2 -CF 2 -CF 2 H is 2.1 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 3.3 mol% in total.

實施例12：BrCF2 -CF2-CF2 -CF2 Br；前添加；無含碘無機材料 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用BrCF2 -CF2-CF2 -CF2 Br以外，進行與實施例1之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為49莫耳%、CF2 =CF-CF2 -CF2 H為1.2莫耳%、HCF2 -CF2 -CF2 -CF2 H為3.8莫耳%、BrCF2 -CF2 -CF2 -CF2 H為25莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為21莫耳%。Example 12: BrCF 2 -CF2-CF 2 -CF 2 Br; pre-added; no iodine-containing inorganic material as the matrix ClCF 2 -CFCl-CF 2 -CF 2 I was not used, BrCF 2 -CF2-CF 2 -CF was used Except for 2 Br, the same treatment as in Example 1 was carried out. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 49 mol%, CF 2 =CF-CF 2 -CF 2 H is 1.2 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 3.8 mol%, BrCF 2 -CF 2 -CF 2 -CF 2 H is 25 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 21 mol% in total.

實施例13：BrCF2 -CF2-CF2 -CF2 Br；後添加；無含碘無機材料 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用BrCF2 -CF2-CF2 -CF2 Br以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為76莫耳%、CF2 =CF-CF2 -CF2 H為13莫耳%、HCF2 -CF2 -CF2 -CF2 H為1.9莫耳%、BrCF2 -CF2 -CF2 -CF2 H為2.1莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為7.0莫耳%。Example 13: BrCF 2 -CF2-CF 2 -CF 2 Br; post-addition; no iodine-containing inorganic material as the matrix ClCF 2 -CFCl-CF 2 -CF 2 I was not used, BrCF 2 -CF2-CF 2 -CF was used Except for 2 Br, the same treatment as in Example 2 was carried out. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 76 mol%, CF 2 =CF-CF 2 -CF 2 H is 13 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 1.9 mol%, BrCF 2 -CF 2 -CF 2 -CF 2 H is 2.1 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 7.0 mol% in total.

實施例14：BrCF2 -CF2-CF2 -CF2 Br；後添加；ZnI2 1.6莫耳% 作為基質未使用ClCF2 -CFCl-CF2 -CF2 I，使用BrCF2 -CF2-CF2 -CF2 Br，於含有鋅的二甲苯之溶液中，使2.70g(0.53mol；對鋅為1.6mol%)的ZnI2 含有以外，進行與實施例2之同樣處理。反應終了後，將收集缸的氣相、液相及反應液以氣相色譜法進行分析，考慮到各項算出轉化率及選擇率時，轉化率為100莫耳%，各成分之選擇率為CF2 =CFCF=CF2 為96莫耳%、CF2 =CF-CF2 -CF2 H為3.0莫耳%、HCF2 -CF2 -CF2 -CF2 H為0.51莫耳%、BrCF2 -CF2 -CF2 -CF2 H為0.28莫耳%，其他副產物(CF3 CF=CHCF3 等)合計為0.21莫耳%。Example 14: BrCF 2 -CF2-CF 2 -CF 2 Br; post-addition; ZnI 2 1.6 mole % ClCF 2 -CFCl-CF 2 -CF 2 I was not used as the matrix, but BrCF 2 -CF2-CF 2 - CF 2 Br was treated in the same manner as in Example 2, except that 2.70 g (0.53 mol; 1.6 mol %) of ZnI 2 was contained in a zinc-containing xylene solution. After the reaction is over, the gas phase, liquid phase and reaction liquid of the collection cylinder are analyzed by gas chromatography. When the conversion rate and selectivity are calculated in consideration of each item, the conversion rate is 100 mole%, and the selectivity of each component is CF 2 =CFCF=CF 2 is 96 mol%, CF 2 =CF-CF 2 -CF 2 H is 3.0 mol%, HCF 2 -CF 2 -CF 2 -CF 2 H is 0.51 mol%, BrCF 2 -CF 2 -CF 2 -CF 2 H is 0.28 mol%, and other by-products (CF 3 CF=CHCF 3 etc.) are 0.21 mol% in total.

結果如表1～2所示。The results are shown in Tables 1-2.

Figure 02_image029
Figure 02_image029

Figure 02_image031
Figure 02_image031

Figure 108120765-A0101-11-0002-2
Figure 108120765-A0101-11-0002-2

Claims (14)

一種全氟鏈烷二烯化合物的製造方法，其為下述一般式(1)所示全氟鏈烷二烯化合物的製造方法，CF2=CF-(CF2)n-4-CF=CF2 (1)[式中，n表示4~20的整數]；其特徵為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟；CF2X1-CFX2-(CF2)n-4-CF2-CF2X3 (2)[式中，n與前述相同；X1、X2及X3表示相同或相異者，X1及X2表示鹵素原子，X3表示氯原子、溴原子或碘原子；但，未有X1及X2的雙方為氟原子之情況]；前述反應步驟中含有：將含有鋅或者鋅合金以及有機溶劑的溶液、含氮化合物與前述一般式(2)所示化合物以逐次方式進行混合的混合步驟；前述混合步驟中含有，將含有前述鋅或者鋅合金以及有機溶劑之溶液，與前述含氮化合物進行混合，其次將所得之混合液與前述一般式(2)所示化合物進行混合的步驟。 A method for producing a perfluoroalkadiene compound, which is a method for producing a perfluoroalkadiene compound represented by the following general formula (1), CF 2 =CF-(CF 2 ) n-4 -CF=CF 2 (1) [wherein, n represents an integer of 4 to 20]; it is characterized in that: in an organic solvent, in the presence of a nitrogen-containing compound, and zinc or zinc alloy, make the following general formula (2) Reaction steps showing the reaction of the compound; CF 2 X 1 -CFX 2 -(CF 2 ) n-4 -CF 2 -CF 2 X 3 (2) [wherein, n is the same as above; X 1 , X 2 and X 3 means the same or different, X1 and X2 represent a halogen atom, X3 represents a chlorine atom, a bromine atom or an iodine atom; however, there is no case where both X1 and X2 are fluorine atoms]; the aforementioned reaction steps Contains in: the mixing step of mixing the solution containing zinc or zinc alloy and organic solvent, the nitrogen-containing compound and the compound represented by the aforementioned general formula (2) in a sequential manner; contained in the aforementioned mixing step, will contain the aforementioned zinc or zinc alloy and a solution of an organic solvent, mixing with the aforementioned nitrogen-containing compound, and then mixing the obtained mixed solution with the compound represented by the aforementioned general formula (2). 一種全氟鏈烷二烯化合物的製造方法，其為下述一般式(1)所示全氟鏈烷二烯化合物的製造方法， CF2=CF-(CF2)n-4-CF=CF2 (1)[式中，n表示4~20的整數]；其特徵為具備：在有機溶劑中，於含氮化合物，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟；CF2X1-CFX2-(CF2)n-4-CF2-CF2X3 (2)[式中，n與前述相同；X1、X2及X3表示相同或相異者，X1表示氯原子，X2表示鹵素原子，X3表示氯原子、溴原子或碘原子]；前述反應步驟中含有，將含有鋅或者鋅合金以及有機溶劑之溶液、含氮化合物與前述一般式(2)所示化合物進行逐次混合的混合步驟。 A method for producing a perfluoroalkadiene compound, which is a method for producing a perfluoroalkadiene compound represented by the following general formula (1), CF 2 =CF-(CF 2 ) n-4 -CF=CF 2 (1) [wherein, n represents an integer of 4 to 20]; it is characterized in that: in an organic solvent, in the presence of a nitrogen-containing compound, and zinc or zinc alloy, make the following general formula (2) Reaction steps showing the reaction of the compound; CF 2 X 1 -CFX 2 -(CF 2 ) n-4 -CF 2 -CF 2 X 3 (2) [wherein, n is the same as above; X 1 , X 2 and X 3 represent the same or different, X1 represents a chlorine atom, X2 represents a halogen atom, X3 represents a chlorine atom, a bromine atom or an iodine atom] ; contained in the aforementioned reaction step, the solution containing zinc or zinc alloy and an organic solvent 1. A mixing step in which the nitrogen-containing compound and the compound represented by the aforementioned general formula (2) are mixed successively. 一種全氟鏈烷二烯化合物的製造方法，其為下述一般式(1)所示全氟鏈烷二烯化合物的製造方法，CF2=CF-(CF2)n-4-CF=CF2 (1)[式中，n表示4~20的整數]；其特徵為具備：在有機溶劑中，於由含氮化合物所成的添加劑，以及鋅或者鋅合金的存在下，使下述一般式(2)所示化合物進行反應的反應步驟；CF2X1-CFX2-(CF2)n-4-CF2-CF2X3 (2) [式中，n與前述相同；X1、X2及X3表示相同或相異者，X1及X2表示鹵素原子，X3表示氯原子、溴原子或碘原子；但，未有X1及X2的雙方為氟原子之情況]；前述反應步驟中含有，將含有鋅或者鋅合金以及有機溶劑之溶液、含氮化合物與前述一般式(2)所示化合物進行逐次混合的混合步驟。 A method for producing a perfluoroalkadiene compound, which is a method for producing a perfluoroalkadiene compound represented by the following general formula (1), CF 2 =CF-(CF 2 ) n-4 -CF=CF 2 (1) [wherein, n represents an integer of 4 to 20]; it is characterized by having: in an organic solvent, in the presence of an additive made of a nitrogen-containing compound and zinc or a zinc alloy, the following general Reaction steps for the compound shown in formula (2) to react; CF 2 X 1 -CFX 2 -(CF 2 ) n-4 -CF 2 -CF 2 X 3 (2) [wherein, n is the same as above; X 1 , X 2 and X 3 represent the same or different ones, X 1 and X 2 represent halogen atoms, and X 3 represent chlorine atoms, bromine atoms or iodine atoms; however, there is no case where both X 1 and X 2 are fluorine atoms ]; the foregoing reaction step contains a mixing step in which the solution containing zinc or zinc alloy and an organic solvent, the nitrogen-containing compound and the compound shown in the foregoing general formula (2) are mixed successively. 如請求項1之製造方法，其中前述混合步驟為，對於前述含有鋅或者鋅合金以及有機溶劑的溶液，將前述含氮化合物以相對於前述鋅或者鋅合金1莫耳而言0.1~600mol/小時的添加速度進行添加。 The production method according to claim 1, wherein the mixing step is, for the aforementioned solution containing zinc or zinc alloy and an organic solvent, adding the aforementioned nitrogen-containing compound at 0.1 to 600 mol/hour relative to 1 mole of the aforementioned zinc or zinc alloy The adding speed is added. 如請求項2或3之製造方法，其中前述混合步驟為含有：將含有鋅或者鋅合金以及有機溶劑的溶液，與含氮化合物進行混合之步驟；對於前述含有鋅或者鋅合金以及有機溶劑的溶液，將前述含氮化合物以相對於前述鋅或者鋅合金1莫耳而言0.1~600mol/小時的添加速度進行添加。 The manufacturing method as claimed in item 2 or 3, wherein the mixing step includes: mixing a solution containing zinc or zinc alloy and an organic solvent with a nitrogen-containing compound; for the solution containing zinc or zinc alloy and an organic solvent , adding the aforementioned nitrogen-containing compound at an addition rate of 0.1 to 600 mol/hour relative to 1 mol of the aforementioned zinc or zinc alloy. 如請求項2或3之製造方法，其中前述混合步驟為，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述一般式(2)所示化合物進行混合，其次將所得的混合液與前述含氮化合物進行混合的步驟。 The manufacturing method of claim 2 or 3, wherein the aforementioned mixing step is to mix the aforementioned solution containing zinc or zinc alloy and an organic solvent with the compound represented by the aforementioned general formula (2), and then mix the resulting mixed solution with the aforementioned The nitrogen-containing compound is mixed. 如請求項2或3之製造方法，其中前述混合步驟為，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物進行混合，其次將所得的混合液與前述一般式(2)所示化合物進行混合者。 The manufacturing method of claim 2 or 3, wherein the mixing step is to mix the aforementioned solution containing zinc or zinc alloy and an organic solvent with the aforementioned nitrogen-containing compound, and then mix the resulting mixed solution with the aforementioned general formula (2) Compounds indicated are mixed. 如請求項1或4之製造方法，其中前述混合步驟為，對於前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物之混合液，將前述一般式(2)所示化合物，以相對於前述鋅或者鋅合金1莫耳而言0.05~30mol/小時的添加速度進行添加。 The manufacturing method of Claim 1 or 4, wherein the aforementioned mixing step is, for the mixed solution of the aforementioned solution containing zinc or zinc alloy and organic solvent, and the aforementioned nitrogen-containing compound, the compound represented by the aforementioned general formula (2), and Addition is performed at an addition rate of 0.05 to 30 mol/hour relative to 1 mol of the aforementioned zinc or zinc alloy. 如請求項1或4之製造方法，其中前述混合步驟中，將前述含有鋅或者鋅合金以及有機溶劑的溶液，與前述含氮化合物進行混合時，前述溶液的溫度為50~200℃。 The production method according to claim 1 or 4, wherein in the mixing step, when the solution containing zinc or zinc alloy and organic solvent is mixed with the nitrogen-containing compound, the temperature of the solution is 50-200°C. 如請求項1~4中任1項之製造方法，其中前述含氮化合物為N,N-二甲基甲醯胺。 The production method according to any one of claims 1 to 4, wherein the nitrogen-containing compound is N,N-dimethylformamide. 如請求項1~4中任1項之製造方法，其中前述有機溶劑的沸點為前述含氮化合物的沸點以下。 The production method according to any one of claims 1 to 4, wherein the boiling point of the organic solvent is lower than the boiling point of the nitrogen-containing compound. 一種全氟鏈烷二烯組成物，其特徵為含有一般式(1)： CF2=CF-(CF2)n-4-CF=CF2 (1)[式中，n表示4~20的整數]所示全氟鏈烷二烯化合物、一般式(3)：CF2=CF-(CF2)n-4-CF2-CF2H (3)[式中，n與前述相同]所示化合物、一般式(4A)：CF2X1-CFX2-(CF2)n-4-CF=CF2 (4A)[式中，n與前述相同；X1及X2表示相同或相異的鹵素原子；但，未有X1及X2的雙方為氟原子之情況]所示化合物，及/或一般式(4B)：CF2H-CFX2-(CF2)n-4-CF2-CF2H (4B)[式中，n與前述相同；X2表示鹵素原子]所示化合物，與一般式(5)：CF2X1-CFX2-(CF2)n-4-CF2-CF2H (5)[式中，n與前述相同；X1及X2表示相同或相異的鹵素原子；但，未有X1及X2的雙方為氟原子之情況]所示化合物；將前述全氟鏈烷二烯組成物的總量作為100莫耳%時，前述一般式(1)所示全氟鏈烷二烯化合物的含有量為50~99.8莫耳%，前述一般式(4A)及/或(4B)所示化 合物的含有量為0.01~5莫耳%。 A perfluoroalkadiene composition characterized by containing the general formula (1): CF 2 =CF-(CF 2 ) n-4 -CF=CF 2 (1) [wherein, n represents 4 to 20 Integer] represented by the perfluoroalkanediene compound represented by the general formula (3): CF 2 =CF-(CF 2 ) n-4 -CF 2 -CF 2 H (3) [wherein, n is the same as above] Formula (4A): CF 2 X 1 -CFX 2 -(CF 2 ) n-4 -CF=CF 2 (4A) [wherein, n is the same as above; X 1 and X 2 represent the same or the same different halogen atoms; however, there is no case where both X 1 and X 2 are fluorine atoms], and/or the general formula (4B): CF 2 H-CFX 2 -(CF 2 ) n-4 - CF 2 -CF 2 H (4B) [wherein, n is the same as above; X 2 represents a halogen atom], and the compound represented by the general formula (5): CF 2 X 1 -CFX 2 -(CF 2 ) n-4 -CF 2 -CF 2 H (5) [In the formula, n is the same as above; X 1 and X 2 represent the same or different halogen atoms; however, there is no case where both X 1 and X 2 are fluorine atoms] Shown compound; When the total amount of the above-mentioned perfluoroalkane diene composition is taken as 100 mol%, the content of the perfluoroalkane diene compound shown in the aforementioned general formula (1) is 50 ~ 99.8 mol%, The content of the compound represented by the aforementioned general formula (4A) and/or (4B) is 0.01-5 mol%. 如請求項12之全氟鏈烷二烯組成物，其中前述一般式(1)所示全氟鏈烷二烯化合物為六氟丁二烯。 The perfluoroalkanadiene composition according to claim 12, wherein the perfluoroalkanadiene compound represented by the general formula (1) is hexafluorobutadiene. 一種蝕刻氣體、冷媒、熱移動媒體、發泡劑或樹脂單體，其特徵係由如請求項12或13之全氟鏈烷二烯組成物所成。 An etching gas, refrigerant, heat transfer medium, foaming agent or resin monomer, which is characterized by the composition of perfluoroalkadiene as claimed in claim 12 or 13.
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