KR101267490B1 - Method for preparation of chiral alpha-hydroxy phosphonate derivatives - Google Patents

Method for preparation of chiral alpha-hydroxy phosphonate derivatives Download PDF

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KR101267490B1
KR101267490B1 KR1020110065546A KR20110065546A KR101267490B1 KR 101267490 B1 KR101267490 B1 KR 101267490B1 KR 1020110065546 A KR1020110065546 A KR 1020110065546A KR 20110065546 A KR20110065546 A KR 20110065546A KR 101267490 B1 KR101267490 B1 KR 101267490B1
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chiral
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phosphonate
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KR20130003905A (en
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김대영
이현주
권유경
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순천향대학교 산학협력단
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    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
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Abstract

생리활성이 있는 화합물로 이용이 되고 있는 키랄 알파-하이드록시 포스포네이트 제조방법에 관한 것으로, 키랄 촉매를 이용한 방법으로서, 알파-케토 포스포네이트를 키랄 촉매와 산 첨가제의 존재하에서, 아세톤과 반응시키며, 상기 키랄 촉매로서 키랄 촉매를 이용하는 제조방법을 개시한다.
상기와 같은 키랄 알파-하이드록시 포스포네이트 제조방법을 이용하는 것에 의해, 키랄 촉매를 이용하여 광학 순도가 높은 광학활성물질을 효율적으로 제조할 수 있다.
The present invention relates to a method for preparing chiral alpha-hydroxy phosphonate, which is used as a physiologically active compound, wherein the method employs a chiral catalyst, wherein alpha-keto phosphonate is reacted with acetone in the presence of a chiral catalyst and an acid additive. In addition, the production method using a chiral catalyst as the chiral catalyst is disclosed.
By using the chiral alpha-hydroxy phosphonate manufacturing method as described above, an optically active material having high optical purity can be efficiently produced using a chiral catalyst.

Description

키랄 알파-하이드록시 포스포네이트 제조방법{Method for preparation of chiral alpha-hydroxy phosphonate derivatives}Method for preparation of chiral alpha-hydroxy phosphonate derivatives}

본 발명은 생리활성이 있는 화합물로 이용되고 있는 알파-하이드록시 포스포네이트 제조방법에 관한 것으로, 특히 키랄 촉매를 이용하여 광학 순도가 높은 광학활성물질을 효율적으로 제조할 수 있는 키랄 알파-하이드록시 포스포네이트 제조방법에 관한 것이다.
The present invention relates to a method for preparing alpha-hydroxy phosphonate that is used as a compound having physiological activity, and in particular, a chiral alpha-hydroxy which can efficiently produce an optically active material having high optical purity using a chiral catalyst. It relates to a phosphonate production method.

광학이성질체는 밀도, 녹는점, 끓는점 등 대부분의 물리적 성질이 동일하다. 그러나, 편광된 빛을 흡수하는 정도가 다르기 때문에 선형편광된 빛을 조사(照射)했을 때 편광면이 회전하게 되며, 이러한 현상을 광학활성이라고 한다. Optical isomers have almost the same physical properties such as density, melting point, and boiling point. However, since the degree of absorption of polarized light is different, the polarization plane rotates when the linearly polarized light is irradiated. This phenomenon is called optical activity.

물질의 광학활성은 편광계를 사용하여 측정한다. 광학활성은 대칭 중심, 대칭면 또는 회전축 등의 대칭 요소를 갖지 못하는 분자에서 나타난다. 이러한 분자들은, 왼손 또는 오른손과 같이 좌우가 바뀌고 서로 겹쳐지지 않는 거울상체의 관계를 갖는 2 개의 이성질체로 존재할 수 있으며, 이런 성질을 가진 분자를 키랄성 화합물(chiral compound)이라고 한다. The optical activity of the material is measured using a polarimeter. Optical activity occurs in molecules that do not have symmetrical elements such as symmetry centers, symmetry planes, or rotational axes. These molecules can exist as two isomers with enantiomers that change left and right and do not overlap each other, such as the left or right hand, and a molecule having this property is called a chiral compound.

키랄 촉매를 이용한 비대칭 합성 방법은 키랄 화합물을 만드는 가장 효율적인 방법이다. Asymmetric synthesis methods using chiral catalysts are the most efficient methods for making chiral compounds.

이와 같은 키랄 촉매를 이용한 기술은 본 발명자들이 출원한 대한민국 특허 공개공보 제2010-0079931호(키랄 촉매를 이용한 알파 - 아미노 카보닐 화합물의 제조 방법, 2010.07.08 공개), 제 2010-0136168호(키랄 촉매를 이용한 베타-아미노 카보닐 화합물의 제조 방법, 2010.12.28 공개) 등에 개시되어 있다.The technology using such a chiral catalyst is disclosed in Korean Patent Application Publication No. 2010-0079931 filed by the present inventors (Method for producing alpha-amino carbonyl compound using chiral catalyst, published on July 8, 2010), 2010-0136168 (chiral A method for preparing a beta-amino carbonyl compound using a catalyst, published on Dec. 28, 2010).

또, 키랄 알파-하이드록시 포스포네이트는 생리 활성이 있는 화합물이기 때문에 많은 연구가 진행되고 있는 분야이다. 키랄 촉매를 이용한 알파-케토 포스포네이트와 아세톤과의 비대칭 알돌 반응은 알려져 있으나(J. Am. Chem. Soc. 2006, 128, 7742.; J. Am. Chem. Soc. 2008, 130, 565.), 본 발명자들이 개발한 촉매를 이용한 방법은 알려지지 않았다. 본 발명자들 개발한 키랄 촉매를 이용한 반응은 r감마-나이트로 케톤과 델타-케토 에스터 화합물의 제조방법이 있다(Bull, Korean, Chem. Soc. 2011, 32, 291).
In addition, since chiral alpha-hydroxy phosphonate is a compound having a physiological activity, much research is being conducted. Asymmetric aldol reactions of alpha-keto phosphonates with acetone using chiral catalysts are known (J. Am. Chem. Soc. 2006, 128, 7742 .; J. Am. Chem. Soc. 2008, 130, 565. ), The method using the catalyst developed by the inventors is unknown. The reaction using the chiral catalyst developed by the present inventors has a method for preparing r gamma-nitro ketone and delta-keto ester compound (Bull, Korean, Chem. Soc. 2011, 32, 291).

본 발명의 목적은 키랄 촉매를 이용하여 광학 순도가 높은 광학활성물질을 효율적으로 제조할 수 있는 키랄 알파-하이드록시 포스포네이트의 제조방법을 제공하는 것이다.
It is an object of the present invention to provide a method for preparing a chiral alpha-hydroxy phosphonate which can efficiently produce an optically active material having high optical purity using a chiral catalyst.

상기 목적을 달성하기 위해 본 발명에 따른 키랄 알파-하이드록시 포스포네이트 제조방법은 키랄 촉매를 이용한 방법으로서, 알파-케토 포스포네이트를 키랄 촉매와 산 첨가제의 존재 하에서, 아세톤과 반응시키며, 상기 키랄 촉매로서 키랄 유기 촉매를 이용하는 것을 특징으로 한다.
Chiral alpha-hydroxy phosphonate production method according to the present invention to achieve the above object is a method using a chiral catalyst, the alpha-keto phosphonate is reacted with acetone in the presence of a chiral catalyst and an acid additive, A chiral organic catalyst is used as a chiral catalyst.

상술한 바와 같이, 본 발명에 따른 키랄 알파-하이드록시 포스포네이트 제조방법에 의하면, 키랄 촉매를 이용하여 광학 순도가 높은 광학활성물질을 효율적으로 제조할 수 있다는 효과가 얻어진다.
As described above, according to the method for producing chiral alpha-hydroxy phosphonate according to the present invention, an effect of efficiently producing an optically active material having high optical purity using a chiral catalyst is obtained.

본 발명의 상기 및 그 밖의 목적과 새로운 특징은 본 명세서의 기술 및 첨부 도면에 의해 더욱 명확하게 될 것이다.These and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

먼저 본 발명에 따른 키랄 알파-하이드록시 포스포네이트 제조방법의 특징에 대해 설명한다.First, the characteristics of the chiral alpha-hydroxy phosphonate production method according to the present invention will be described.

본 발명의 일 실시 예에 따른 키랄 알파-하이드록시 포스포네이트 제조방법은, 알파-케토 포스포네이트를, 키랄 촉매와 산 첨가제의 존재 하에서, 아세톤과 반응시켜 키랄 알파-하이드록시 포스포네이트를 제조한다. 상기 제조방법은, 키랄 촉매를 이용하여, 광학 순도가 높은 광학활성물질을 효율적으로 제조하기 위한 것이다.Chiral alpha-hydroxy phosphonate production method according to an embodiment of the present invention, by reacting the alpha-keto phosphonate with acetone in the presence of a chiral catalyst and an acid additive, the chiral alpha-hydroxy phosphonate Manufacture. The above production method is for efficiently producing an optically active substance with high optical purity using a chiral catalyst.

또 다른 일 실시 예에서, 키랄 촉매는, 하기 화학식 1, 2, 3, 4 중 어느 하나의 화합물이다.In another embodiment, the chiral catalyst is a compound of any one of Formulas 1, 2, 3, and 4 below.

Figure 112011050614462-pat00001
Figure 112011050614462-pat00001

Figure 112011050614462-pat00002
Figure 112011050614462-pat00002

Figure 112011050614462-pat00003
Figure 112011050614462-pat00003

Figure 112011050614462-pat00004
Figure 112011050614462-pat00004

또 본 발명의 일 실시 예에서, 상기 키랄 촉매의 함량은 반응 물질들의 전체 몰수를 기준으로, 1 내지 20 몰%, 구체적으로는 1 내지 10 몰%, 보다 구체적으로는 10 몰%이다. 상기 범위는, 광학 순도가 높은 키랄 알파-하이드록시 포스포네이트를 효율적으로 제조하기 위한 것이다. 키랄 촉매의 함량이 상기 범위보다 낮은 경우에는, 합성된 키랄 알파-하이드록시 포스포네이트의 광학 순도가 저하되고, 상기 범위보다 높은 경우에는, 촉매 첨가로 인한 효율성이 떨어질 수 있다.In addition, in one embodiment of the present invention, the content of the chiral catalyst is 1 to 20 mol%, specifically 1 to 10 mol%, more specifically 10 mol% based on the total moles of the reactants. The above range is for efficiently producing chiral alpha-hydroxy phosphonate having high optical purity. When the content of the chiral catalyst is lower than the above range, the optical purity of the synthesized chiral alpha-hydroxy phosphonate is lowered, and when it is higher than the above range, the efficiency due to the addition of the catalyst may decrease.

또 본 발명의 일 실시 예에서, 알파-케토 포스포네이트는 하기의 화학식 5의 구조를 갖는 화합물일 수 있다. In another embodiment of the present invention, the alpha-keto phosphonate may be a compound having a structure of Formula 5 below.

Figure 112011050614462-pat00005
Figure 112011050614462-pat00005

상기 화학식 5에서, 상기 R1은 C1-C10의 알킬기이다. 상기 R2 은 C1-C10의 알킬기 또는 아릴기이다. 또 본 발명에서 실시한 상기 아릴기는 C1-C10 알콕시기, 알킬 또는 할로겐으로 치환된 아릴기일 수 있다.In Formula 5, R 1 is an alkyl group of C 1 -C 10 . R 2 Is an alkyl group or an aryl group of C 1 -C 10 . In addition, the aryl group carried out in the present invention may be an aryl group substituted with a C 1 -C 10 alkoxy group, alkyl or halogen.

또 본 발명의 일 실시 예에서, 상기 아세톤 화합물은 하기 화학식 6의 구조를 갖는 화합물일 수 있다. In one embodiment of the present invention, the acetone compound may be a compound having a structure of Formula 6.

Figure 112011050614462-pat00006
Figure 112011050614462-pat00006

또 다른 일 실시 예에서, 상기 키랄 알파-하이드록시 포스포네이트는, 화학식 7를 갖는 화합물일 수 있다.In another embodiment, the chiral alpha-hydroxy phosphonate may be a compound having Formula 7.

Figure 112011050614462-pat00007
Figure 112011050614462-pat00007

상기 화학식 7에서, R1은 C1-C10의 알킬기이다. 또 상기 R2은 C1-C10의 선형, 또는 가지형 알킬기 또는 아릴기이다. 또 본 발명에서 실시한 상기 아릴기는 C1-C10 알콕시기, 알킬 또는 할로겐으로 치환된 아릴기 일 수 있다.
In Formula 7, R 1 is an alkyl group of C 1 -C 10 . And R 2 is a C 1 -C 10 linear or branched alkyl group or an aryl group. In addition, the aryl group carried out in the present invention may be an aryl group substituted with a C 1 -C 10 alkoxy group, alkyl or halogen.

이하, 본 발명의 일 실시 예에 따른 키랄 알파-하이드록시 포스포네이트의 제조방법에 대하여 보다 구체적으로 설명한다. Hereinafter, a method for preparing chiral alpha-hydroxy phosphonate according to an embodiment of the present invention will be described in more detail.

본 발명에 따른 키랄 알파-하이드록시 포스포네이트의 일 실시 예에서, 상기 키랄 촉매는 하기 반응식 1의 공정을 통해 제조할 수 있다.
In one embodiment of the chiral alpha-hydroxy phosphonate according to the present invention, the chiral catalyst may be prepared through the process of Scheme 1 below.

[반응식 1][Reaction Scheme 1]

Figure 112011050614462-pat00008
Figure 112011050614462-pat00008

또 본 발명의 일 실시 예에서, 알파-케토 포스포네이트는 키랄 촉매와 산 첨가제의 존재 하에서 아세톤 화합물과 반응시켜 키랄 알파-하이드록시 포스포네이트를 제조할 수 있다. 구체적인 반응식은 하기 반응식 2와 같다.In addition, in an embodiment of the present invention, the alpha-keto phosphonate may be reacted with an acetone compound in the presence of a chiral catalyst and an acid additive to prepare a chiral alpha-hydroxy phosphonate. Specific reaction scheme is the same as in Scheme 2.

[반응식 2][Reaction Scheme 2]

Figure 112013000025421-pat00025
Figure 112013000025421-pat00025

상기 반응식 2에서, R1, R2는 위에서 정의한 바와 같다.In Scheme 2, R 1 , R 2 is as defined above.

이하, 하기 실시 예 등에 의하여 본 발명을 더욱 상세하게 설명하고자 한다. 다만, 하기 실시 예 등은 본 발명을 예시하기 위한 것일 뿐 본 발명의 범위가 이들만으로 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples and the like are intended to illustrate the present invention, but the scope of the present invention is not limited thereto.

입체 선택적인 키랄 알파-하이드록시 포스포네이트의 합성을 위해 키랄 촉매를 이용한 비대칭 알돌 반응을 수행하였으며, 구체적인 반응조건 및 수율은 표 1에 나타내었다. 먼저 키랄 촉매의 구조에 따른 입체 선택성 차이를 확인하였다. 촉매에 구조에 따른 입체 선택성 차이가 큰 것을 볼 수 있으며(enties 2-5), 가장 높은 선택성을 보여준 촉매는 I임을 볼 수 있다. 촉매 I를 이용하여 산 첨가제 조건을 확인한 결과 파라-나이트로 아세트 에시드에서 가장 높은 선택성을 보였으며 (enties 6-11), 용매 조건을 확인 한 결과 테트라 하이드로 퓨란이 가장 높은 입체 선택성을 보여주었다.
Asymmetric aldol reaction using a chiral catalyst was performed for the synthesis of the stereoselective chiral alpha-hydroxy phosphonate. Specific reaction conditions and yields are shown in Table 1. First, the stereoselectivity difference according to the structure of the chiral catalyst was confirmed. It can be seen that the steric selectivity difference according to the structure is large in the catalyst (enties 2-5), and the catalyst showing the highest selectivity is I. As a result of checking the acid additive condition using catalyst I , para-nitroacetic acid showed the highest selectivity (enties 6-11), and the solvent condition confirmed that tetrahydrofuran showed the highest stereoselectivity.

Figure 112011050614462-pat00010
Figure 112011050614462-pat00010

표 1에서 나타나 최적조건하에서 화학식 5의 R1 알킬기, R2가 알킬기 또는 아릴기인 경우 비대칭 반응을 수행하여 높은 입체선택성으로 나타내었다. 그 결과는 표 2와 같다.
In Table 1, when the R 1 alkyl group, R 2 of the general formula (5) is an alkyl group or an aryl group under optimum conditions, an asymmetric reaction was performed to show high stereoselectivity. The results are shown in Table 2.

Figure 112011050614462-pat00011
Figure 112011050614462-pat00011

[실시 예 1] [Example 1]

Diethyl [1-hydroxy-1-(4-methylphenyl)-3-oxobutyl] phosphonate Diethyl [1-hydroxy-1- (4-methylphenyl) -3-oxobutyl] phosphonate

Figure 112011050614462-pat00012
Figure 112011050614462-pat00012

플라스크에 알파-케토 포스포네이트 0.3 mmol, 4-나이트로벤조이 에시드 0.03 mmol, 상기 촉매 0.015 mmol, 테트라하이드로퓨란 0.7 mL, 아세톤 0.66 mL을 넣고 상온에서 9시간 교반한다. 반응진행이 완료되면 반응 혼합물을 농축 후, 컬럼크로마토크래피로 분리 정제하여 화학식 7을 80% 수율, 79% ee(enantiomeric excess)의 입체선택성으로 얻었다.0.3 mmol of alpha-keto phosphonate, 0.03 mmol of 4-nitrobenzoy acid, 0.015 mmol of the catalyst, 0.7 mL of tetrahydrofuran and 0.66 mL of acetone were added and stirred at room temperature for 9 hours. When the reaction proceeded to completion, the reaction mixture was concentrated and separated and purified by column chromatography to obtain Chemical Formula 7 as a stereoselectivity of 80% yield, 79% ee (enantiomeric excess).

[a]31 D = -17.5 (c = 1, CHCl3, 79% ee); 1H NMR (400 MHz, CDCl3) 1.11 (t, J = 7.2 Hz, 3H), 1.32 (t, J = 6.8 Hz, 3H), 2.14 (s, 3H), 2.33 (s, 3H), 3.27-3.41 (m, 2H), 3.66-3.72 (m, 1H), 3.84-3.90 (m, 1H), 4.12-4.19 (m, 2H), 4.99 (d, J = 19.6 Hz, 1H), 7.17 (d, J = 8.0 Hz, 2H), 7.47-7.49 (m, 2H); Rt HPLC (90 : 10 n-hexane : i-PrOH, 220 nm, 1.0 mL/min) Chiralpak AD-H column, tR = 10.8 min (major), tR = 13.0 (minor).
[a] 31 D = -17.5 (c = 1, CHCl 3 , 79% ee); 1 H NMR (400 MHz, CDCl 3 ) 1.11 (t, J = 7.2 Hz, 3H), 1.32 (t, J = 6.8 Hz, 3H), 2.14 (s, 3H), 2.33 (s, 3H), 3.27-3.41 (m, 2H), 3.66-3.72 (m, 1H), 3.84-3.90 (m, 1H), 4.12- 4.19 (m, 2H), 4.99 (d, J = 19.6 Hz, 1H), 7.17 (d, J = 8.0 Hz, 2H), 7.47-7.49 (m, 2H); Rt HPLC (90:10 n-hexane: i- PrOH, 220 nm, 1.0 mL / min) Chiralpak AD-H column, tR = 10.8 min (major), tR = 13.0 (minor).

[실시 예 2]  [Example 2]

Diethyl [1-(4- fluorophenyl)-1-hydroxy-3-oxobutyl] phosphonateDiethyl [1- (4-fluorophenyl) -1-hydroxy-3-oxobutyl] phosphonate

Figure 112011050614462-pat00013
Figure 112011050614462-pat00013

상기 실시 예 1과 동일한 방법으로 화학식 7를 78% 수율, 83% ee의 입체선택성으로 얻었다.Formula 7 was obtained in the same manner as in Example 1 with 78% yield and stereoselectivity of 83% ee.

[a]30 D = -20.7 (c = 1, CHCl3, 83% ee); 1H NMR (400 MHz, CDCl3) 1.10 (t, J = 7.0 Hz, 3H), 1.31 (t, J = 7.0 Hz, 3H), 2.16 (s, 3H), 3.32 (d, J = 9.2 Hz, 2H), 3.71 (m, 4H), 5.10 (d, J = 18.8 Hz, 1H), 7.04-7.08 (m, 2H), 7.57-7.61 (m, 2H); Rt HPLC (90 : 10 n-hexane : i-PrOH, 220 nm, 1.0 mL/min) Chiralpak IA column, tR = 8.7 min (major), tR = 10.4 (minor).
[a] 30 D = -20.7 (c = 1, CHCl 3 , 83% ee); 1 H NMR (400 MHz, CDCl 3 ) 1.10 (t, J = 7.0 Hz, 3H), 1.31 (t, J = 7.0 Hz, 3H), 2.16 (s, 3H), 3.32 (d, J = 9.2 Hz, 2H), 3.71 (m, 4H), 5.10 (d, J = 18.8 Hz, 1H), 7.04-7.08 (m, 2H), 7.57-7.61 (m, 2H); Rt HPLC (90:10 n-hexane: i- PrOH, 220 nm, 1.0 mL / min) Chiralpak IA column, tR = 8.7 min (major), tR = 10.4 (minor).

[실시 예 3] [Example 3]

Diethyl [1-(4-bromophenyl)-1-hydroxy-3-oxobutyl]phosphonate Diethyl [1- (4-bromophenyl) -1-hydroxy-3-oxobutyl] phosphonate

Figure 112011050614462-pat00014
Figure 112011050614462-pat00014

상기 실시 예 1과 동일한 방법으로 화학식 7를 75% 수율, 85% ee의 입체선택성으로 얻었다Formula 7 was obtained in the same manner as in Example 1 with 75% yield and stereoselectivity of 85% ee.

[a]30 D = -20.3 (c = 1, CHCl3, 85% ee); 1H NMR (400 MHz, CDCl3) 1.11 (t, J = 7.2 Hz, 3H), 1.31 (t, J = 7.0 Hz, 3H), 2.16 (s, 3H), 3.12 (d, J = 8.4 Hz, 2H), 3.72 (m, 4H), 5.09 (d, J = 18.8 Hz, 1H), 7.49 (d, 4H); Rt HPLC (90 : 10 n-hexane : i-PrOH, 220 nm, 1.0 mL/min) Chiralpak AD-H column, tR = 10.6 min (major), tR = 15.2 (minor).
[a] 30 D = -20.3 (c = 1, CHCl 3 , 85% ee); 1 H NMR (400 MHz, CDCl 3 ) 1.11 (t, J = 7.2 Hz, 3H), 1.31 (t, J = 7.0 Hz, 3H), 2.16 (s, 3H), 3.12 (d, J = 8.4 Hz, 2H), 3.72 (m, 4H), 5.09 (d, J = 18.8 Hz, 1 H), 7.49 (d, 4 H); Rt HPLC (90:10 n-hexane: i -PrOH, 220 nm, 1.0 mL / min) Chiralpak AD-H column, tR = 10.6 min (major), tR = 15.2 (minor).

[실시 예 4] [Example 4]

Diisopropyl (1-hydroxy-3-oxo-1-phenylbutyl) phosphonateDiisopropyl (1-hydroxy-3-oxo-1-phenylbutyl) phosphonate

Figure 112011050614462-pat00015
Figure 112011050614462-pat00015

상기 실시 예 1과 동일한 방법으로 화학식 7를 77% 수율, 85% ee의 입체선택성으로 얻었다In the same manner as in Example 1, Formula 7 was obtained in 77% yield and stereoselectivity of 85% ee.

[a]27 D = -16.4 (c = 1, CHCl3, 85% ee); 1H NMR (400 MHz, CDCl3) 0.93 (d, J = 6.4 Hz, 3H), 1.20 (d, J = 6.0 Hz, 3H), 1.30-1.34 (m, 6H), 2.12 (s, 3H), 3.26-3.39 (m, 2H), 4.30-4.37 (m, 1H), 4.70-4.78 (m, 1H), 4.96 (d, J = 18.0 Hz, 1H), 7.27-7.29 (m, 1H), 7.33-7.37 (m, 2H), 7.62 (d, J = 7.6 Hz, 2H); Rt HPLC (92 : 8 n-hexane : i-PrOH, 220 nm, 1.0 mL/min) Chiralcel OJ-H column, tR = 5.0 min (major), tR = 6.6 (minor).
[a] 27 D = -16.4 (c = 1, CHCl 3 , 85% ee); 1 H NMR (400 MHz, CDCl 3 ) 0.93 (d, J = 6.4 Hz, 3H), 1.20 (d, J = 6.0 Hz, 3H), 1.30-1.34 (m, 6H), 2.12 (s, 3H), 3.26-3.39 (m, 2H), 4.30-4.37 (m, 1H), 4.70-4.78 (m, 1H), 4.96 (d, J = 18.0 Hz, 1H), 7.27-7.29 (m, 1H), 7.33-7.37 (m, 2H), 7.62 (d, J = 7.6 Hz, 2H); Rt HPLC (92: 8 n-hexane: i -PrOH, 220 nm, 1.0 mL / min) Chiralcel OJ-H column, tR = 5.0 min (major), tR = 6.6 (minor).

이상 본 발명자에 의해서 이루어진 발명을 상기 실시 예에 따라 구체적으로 설명하였지만, 본 발명은 상기 실시 예에 한정되는 것은 아니고 그 요지를 이탈하지 않는 범위에서 여러 가지로 변경 가능한 것은 물론이다.Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

본 발명에 따른 키랄 알파-하이드록시 포스포네이트의 제조방법은 광학 순도가 높은 광학활성물질의 효율적 제조에 이용된다.
The method for preparing chiral alpha-hydroxy phosphonate according to the present invention is used for the efficient preparation of an optically active material having high optical purity.

Claims (6)

키랄 촉매를 이용한 키랄 알파-하이드록시 포스포네이트 제조방법으로서,
알파-케토 포스포네이트를, 키랄 촉매와 산 첨가제의 존재 하에서, 아세톤과 반응시켜 제조되며,
상기 알파-케토 포스포네이트는 하기 화학식 5의 구조를 가지며,
상기 키랄 촉매는 하기 화학식 1, 화학식 2, 화학식 3, 화학식 4 중 어느 하나의 구조를 가지며,
상기 산첨가제는 4-나이트로벤조산을 사용하는 것을 특징으로 하는 키랄 알파-하이드록시 포스포네이트 제조방법.
[화학식 1]
Figure 112013000025421-pat00026

[화학식 2]
Figure 112013000025421-pat00027

[화학식 3]
Figure 112013000025421-pat00028

[화학식 4]
Figure 112013000025421-pat00029

[화학식 5]
Figure 112013000025421-pat00016

상기 화학식 5에서, 상기 R1은 C1-C10의 알킬기이고, 상기 R2 은 C1-C10의 알킬기 또는 아릴기이며, 상기 아릴기는 C1-C10 알콕시기, 알킬 또는 할로겐으로 치환된 아릴기임.
A chiral alpha-hydroxy phosphonate production method using a chiral catalyst,
Alpha-keto phosphonate is prepared by reacting with acetone in the presence of a chiral catalyst and an acid additive,
The alpha-keto phosphonate has a structure of Formula 5,
The chiral catalyst has a structure of any one of the following Formula 1, Formula 2, Formula 3, Formula 4,
The acid additive is a method for preparing chiral alpha-hydroxy phosphonate, characterized in that 4-nitrobenzoic acid is used.
[Formula 1]
Figure 112013000025421-pat00026

(2)
Figure 112013000025421-pat00027

(3)
Figure 112013000025421-pat00028

[Chemical Formula 4]
Figure 112013000025421-pat00029

[Chemical Formula 5]
Figure 112013000025421-pat00016

In the formula 5, wherein R 1 is an alkyl group of C 1 -C 10, wherein R 2 is an alkyl group or an aryl group of C 1 -C 10, wherein the aryl group is substituted by C 1 -C 10 alkoxy group, alkyl or halogen Aryl group.
제 1항에 있어서,
아세톤 화합물은 하기 화학식 6의 구조를 갖는 것을 특징으로 하는 키랄 알파-하이드록시 포스포네이트 제조방법.
[화학식 6]
Figure 112011050614462-pat00017
The method of claim 1,
Acetone compound has a structure of the formula (6) characterized in that the chiral alpha-hydroxy phosphonate production method.
[Chemical Formula 6]
Figure 112011050614462-pat00017
제 1항에 있어서,
상기 알파-케토 포스포네이트를 키랄 촉매와 산 첨가제의 존재하에서 아세톤과 반응시켜 하기 화학식 7의 구조를 갖는 것을 특징으로 하는 키랄 알파-하이드록시 포스포네이트 제조방법.
[화학식 7]
Figure 112011050614462-pat00018

상기 화학식 7에서, R1은 C1-C10의 알킬기이며, 상기 R2은 C1-C10의 선형, 또는 가지형 알킬기 또는 아릴기이고, 상기 아릴기는 C1-C10 알콕시기, 알킬 또는 할로겐으로 치환된 아릴기임.
The method of claim 1,
The alpha-keto phosphonate is reacted with acetone in the presence of a chiral catalyst and an acid additive to have a structure of the chiral alpha-hydroxy phosphonate.
(7)
Figure 112011050614462-pat00018

In Formula 7, R 1 is a C 1 -C 10 alkyl group, R 2 is a C 1 -C 10 linear or branched alkyl group or an aryl group, the aryl group is a C 1 -C 10 alkoxy group, alkyl Or an aryl group substituted with halogen.
삭제delete 제1항에 있어서,
상기 키랄 촉매의 함량은, 반응 물질들의 전체 몰수를 기준으로, 1 내지 20 몰%인 것을 특징으로 하는 키랄 알파-하이드록시 포스포네이트 제조방법.
The method of claim 1,
The content of the chiral catalyst, based on the total number of moles of the reactant, characterized in that 1 to 20 mole% chiral alpha-hydroxy phosphonate production method.
알파-케토 포스포네이트를 키랄 촉매와 산 첨가제의 존재 하에서 하기 반응식 2와 같이 아세톤과 반응시켜 3차 알코올을 가지는 것을 특징으로 하는 키랄 알파-하이드록시 포스포네이트 제조방법.
[반응식 2]
Figure 112013000025421-pat00030

상기 반응식 2에서, R1은 C1-C10의 알킬기이고, 상기 R2은 C1-C10의 선형, 또는 가지형 알킬기 또는 아릴기이며, 상기 아릴기는 C1-C10 알콕시기, 알킬 또는 할로겐으로 치환된 아릴기이며, 상기 키랄 촉매는 화학식 1 내지 4 중 어느 하나의 구조를 가짐.
A method for producing a chiral alpha-hydroxy phosphonate, wherein the alpha-keto phosphonate is reacted with acetone in the presence of a chiral catalyst and an acid additive to have a tertiary alcohol as in Scheme 2 below.
[Reaction Scheme 2]
Figure 112013000025421-pat00030

In Scheme 2, R 1 is a C 1 -C 10 alkyl group, R 2 is a C 1 -C 10 linear or branched alkyl group or an aryl group, the aryl group is a C 1 -C 10 alkoxy group, alkyl Or an aryl group substituted with a halogen, the chiral catalyst has a structure of any one of formulas (1) to (4).
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