CS261433B1 - Photochrome 1,5-bis/substituted phenyl/-3,3-diphenyl-1,5-pentandiones and method of their production - Google Patents

Photochrome 1,5-bis/substituted phenyl/-3,3-diphenyl-1,5-pentandiones and method of their production Download PDF

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CS261433B1
CS261433B1 CS874541A CS454187A CS261433B1 CS 261433 B1 CS261433 B1 CS 261433B1 CS 874541 A CS874541 A CS 874541A CS 454187 A CS454187 A CS 454187A CS 261433 B1 CS261433 B1 CS 261433B1
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diphenyl
bis
substituted phenyl
production
pentandiones
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CS874541A
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CS454187A1 (en
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Antonin Doc Ing Csc Kurfurst
Jan Ing Zeleny
Marian Ing Schwarz
Josef Prof Ing Drsc Kuthan
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Kurfurst Antonin
Zeleny Jan
Schwarz Marian
Kuthan Josef
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Priority to CS874541A priority Critical patent/CS261433B1/en
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Abstract

Fotochromné 1,5-bis(subst.fenyl) 3,3-difenyl-l,5-pentadióny obecného vzorca I, kde X je alkyl s počtom uhlíkov 1 až 2, alkoxyl s počtom uhlíkov 1 až 2 alebo halogén, majú fotochromné vlastnosti. Sposob ich výroby spočívá v tom, že sa posobí bázou na zmes zlúčeniny II, kde X má vyššie uvedený vý­ znam a benzofenónu v bezvodom éteri, tetrahydrofuráne či dioxáne pri teplotách od —30 do +50 °C.Photochromic 1,5-bis (subst. Phenyl) 3,3-diphenyl-1,5-pentadiones of formula (I) wherein X is alkyl of 1 to 2, alkoxy having carbon numbers of 1 or 2, or halogen, have photochromic properties. The way of their production it consists in basing it on the mixture Compound II wherein X is as defined above; benzophenone in anhydrous ether, tetrahydrofuran or dioxane at temperatures from -30 to + 50 ° C.

Description

Vynález sa týká 1,5-bis (subst. ,fenyl}3,3-difenyl-l,5-pentándiónGB(ř (^ecaaplíp «zoreatd, kde X je alkyl s počtom uhlíkov 1 až 2, alkoxyl s počtom uhlíkov 1· až P2 alebQ, halogen.The present invention relates to 1,5-bis (subst., Phenyl) 3,3-diphenyl-1,5-pentanedione GB (η (ε-α-β-piperazine) wherein X is alkyl having a carbon number of 1 to 2, alkoxyl having a carbon number of 1 to 2). to P 2 or Q, halogen.

Doposia! bol připravený len derivát, v ktorom substituenty X sú vodíkové atomy a to z acetofenónu a benzofenónu pósobením bázy.So far the! only a derivative in which the X substituents are hydrogen atoms from acetophenone and benzophenone by base treatment was prepared.

Novo připravené diketóny vykazujú v kryštalickom stave výrazná fotochromiu po ožiarení slnečným svetlom. Uvedené 1,5-diketóny sú potenciálnymi prekurzormi pre syntézu heterocyklickýoh zlúčenín a móžu byť využité ako zložky fotochrómnych zmesi s aplikáciou vo výrobě fotomateriálov alebo materiálov pre mikroelektroniku. Nové diketóny můžu sa popžívat pre syntézu nových heierocyklických zlúčenín s fotochromnými vlastnosťami. Spósob výroby 1,3,3,5-tetrafenyl-l,5-pentándiónov obecného vzorca I, kde X má vyššie uvedený význam podlá vynálezu, spočívá v pósobení bázy na zmes zlúčeniny II, kde X má vyššie uvedený význam a benzofenónu. Ako· bázy sa používajú hydridy, amidy alebo alkoxidy alkalických kovov. Reakcia sa prevádza v bez- vodom éteri, tetrahydrofuráne či dioxáne pri teplotách od —30 do +50 °C.Newly prepared diketones exhibit in the crystalline state significant photochromia after irradiation with sunlight. Said 1,5-diketones are potential precursors for the synthesis of heterocyclic compounds and can be used as components of photochromic compositions for use in the manufacture of photomaterials or materials for microelectronics. The novel diketones can be used to synthesize new heierocyclic compounds with photochromic properties. A process for the preparation of 1,3,3,5-tetrafenyl-1,5-pentanediones of formula I wherein X is as defined hereinabove is to treat the base with a mixture of compound II, wherein X is as defined above and benzophenone. Alkali metal hydrides, amides or alkoxides are used as bases. The reaction is carried out in anhydrous ether, tetrahydrofuran or dioxane at temperatures from -30 to +50 ° C.

Spósob výroby diketónov I a ich fotochrómne vlastnosti sú uvedené v následujúcich príkladoch.The process for producing diketones I and their photochromic properties are shown in the following examples.

Příklad 1Example 1

Spósob výroby diketónu I (X=CH3)Method of production of diketone I (X = CH3)

Do miešanej a chladenej suspenzie 8 g (0,2 mólu) amidu sodného bol prillaty roztok 9,0 g (0,05 mólu) benzonfenónu a 13,4 g (0,1 mólu) p-metylacetofenónu v 25 ml éteru. Zmes bola miešaná 3 hodiny pri 0 °C a potom 2 dni pri laboratórnej teplote. Po rozložení vodou a extrakcii vodné] fázy benzénom boli spojené organické podiely destilované vodnou parou. Destilačný zvyšok bol vytrepaný do benzénu, spojené organické podiely boli sušené síranom sodným. a po vákuovom odpaření rozpúšťadla bol získaný olej převrstvený éterom. Bolo získané 4,5 g 1,5-bis (p-tolyl )-3,3-difenyl-l,5-pentadiónu (21 %-ný výťažok) o teplote topenia 113 až 116 °C.To a stirred and cooled suspension of 8 g (0.2 mol) of sodium amide was added a solution of 9.0 g (0.05 mol) of benzonphenone and 13.4 g (0.1 mol) of p-methylacetophenone in 25 ml of ether. The mixture was stirred at 0 ° C for 3 hours and then at room temperature for 2 days. After decomposition with water and extraction of the aqueous phase with benzene, the combined organic fractions were distilled with steam. The distillation residue was taken up in benzene, the combined organics were dried over sodium sulfate. and after evaporation of the solvent in vacuo, the oil was overlaid with ether. 4.5 g of 1,5-bis (p-tolyl) -3,3-diphenyl-1,5-pentadione (21% yield), m.p. 113-116 ° C, were obtained.

. Příklad 2. Example 2

Spósob výroby diketónu I (X=OCHójMethod for producing diketone I (X = OCH 3)

Do miešanej a chladenej suspenzie 8 g (0,2 molu] amidu sodného bol priliaty roztok 9,0 g (0,05 mólu] benzofenónu a 15,0 g (0,1 mólu) p-metoxyacetofenónu· v 25 ml éteru. Reakčná zmes bola spracovaná obdobným spósobom ako v příklade.. 1,..pričom bolo získané 4,1 g 1,5-bis (p-methoxyf enyl j< -3i3-difenyl-l,5.-pentadiónu (18 %-ný výtažok) o teplote topenia 156 až 157 °C. Příklad 3To a stirred and cooled suspension of 8 g (0.2 mol) of sodium amide was added a solution of 9.0 g (0.05 mol) of benzophenone and 15.0 g (0.1 mol) of p-methoxyacetophenone in 25 ml of ether. The mixture was worked up in a similar manner to Example 1 to give 4.1 g of 1,5-bis (p-methoxyphenyl) -3,3-diphenyl-1,5-pentadione (18% yield). mp 156-157 ° C. Example 3

Spósob výroby diketónu I (X—Br)Method for producing diketone I (X-Br)

Do miešanej a chladenej suspenzie 8 g (0,2 mólu) amidu sodného hol priliaty roztok 9,0 g (0,05 mólu) benzofenónu a 19,9 g (0,1 mólu) p-brómacetofenónu v 25 ml éteru. Reakčná zmes bola spracovaná a produkt bol izolovaný obdobným sposobom aiko v příklade 1. Bolo získané 8,1 g 1,5-bis (p-bromf enyl) 3,3-dif enyl-l,5-pentadiónu (45 %-ný výťažok), ktorý po rekryštalizácii zo zmesi benzén-petroléter mal teplotu topenia 195 až 196 °C. Analogicky bol připravený 1,5-bis (p-f luorf enyl) -3,3-dif enyl-1,5-pentadión (X=F) vo 26 %-nom výtažku s t. t. 174 až 177 °C.To a stirred and cooled suspension of 8 g (0.2 mol) of sodium amide was added a solution of 9.0 g (0.05 mol) of benzophenone and 19.9 g (0.1 mol) of p-bromoacetophenone in 25 ml of ether. The reaction mixture was worked up and the product was isolated in a similar manner to that in Example 1. 8.1 g of 1,5-bis (p-bromophenyl) 3,3-diphenyl-1,5-pentadione (45% yield) were obtained. ), which after recrystallization from benzene-petroleum ether had a melting point of 195-196 ° C. Analogously, 1,5-bis (p-fluorophenyl) -3,3-diphenyl-1,5-pentadione (X = F) was prepared in 26% yield with m.p. t. Mp 174-177 ° C.

Příklad 4Example 4

Fotochrómne vlastnosti látok IPhotochromic properties of substances

Svetlom indukovaná farebná. změna u látok I bola pozorovaná v tuhom stave. Pri ozařovaní krystalických vzoriek látok I působením -slnečného světla sa potřebná doba expozície pohybuje od zlomkov sekund až po nie.kofko minút. Přechováváním, farebných kryštálov v temne dochádza i spatné behom niekolkých hodin k strate farby. Obdobného efektu je možné dosiahnuť i pri rozpuštění látky alebo pri jej zahriatí.Light induced color. change in substances I was observed in the solid state. When irradiating crystalline samples of substances I under the influence of sunlight, the required exposure time varies from fractions of a second to a few minutes. By keeping the colored crystals in the dark, there is a loss of color even within a few hours. A similar effect can also be obtained if the substance is dissolved or heated.

Látka ISubstance I

X=HX = H

X=CH2X = CH 2

Farba látky před ožiarenímColor of the substance before irradiation

Farba látky po ožiarení bezfarebná fialová bezfarebná červenáColor of the substance after irradiation colorless violet colorless red

2B14332B1433

Claims (3)

PREDMETSUBJECT 1. Fotochromné l,5-bis(subst. fenyl )-3,3-difenyl-l,5-pentadióny obecného vzorca I, kde X je alkyl s počtom uhlíkov. 1 až 2, alkoxyl s počtom uhlíkov 1 až 2 alebo halogén.Photochromic 1,5-bis (substituted phenyl) -3,3-diphenyl-1,5-pentadiones of the general formula I, wherein X is a carbon-containing alkyl. 1-2, alkoxy having a carbon number of 1-2 or halogen. 2. Sposob výroby l,5-bis(subst. fenyl) 3,3-difenyl-l,5-pentadiónov podfa bodu 1, vyznačený tým, že sa posobí bázou na zmes2. A process for the preparation of 1,5-bis (substituted phenyl) 3,3-diphenyl-1,5-pentadione according to claim 1, characterized in that it is treated with a base to form a mixture. VYNALEZU derivátu obecného vzorca II, kde X má vyššie uvedený význam a benzofenónu v bezvodom éteri, tetrahydrofuráne či dioxáne pri teplotách od —30 do +50 °C.OF THE INVENTION a derivative of the general Formula II wherein X is as defined above and benzophenone in anhydrous ether, tetrahydrofuran or dioxane at temperatures from -30 to +50 ° C. 3. Spůsob výroby podfa bodu 2, vyznačený tým, že sa ako bázy používají hydridy, amidy alebo alkoxidy alkalických kovov.3. A process according to claim 2, wherein the alkali metal hydrides, amides or alkoxides are used as bases.
CS874541A 1987-06-19 1987-06-19 Photochrome 1,5-bis/substituted phenyl/-3,3-diphenyl-1,5-pentandiones and method of their production CS261433B1 (en)

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