CS266112B1 - 2- (4-benzoylphenyl) -2-phenyl - Google Patents

2- (4-benzoylphenyl) -2-phenyl Download PDF

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CS266112B1
CS266112B1 CS875528A CS552887A CS266112B1 CS 266112 B1 CS266112 B1 CS 266112B1 CS 875528 A CS875528 A CS 875528A CS 552887 A CS552887 A CS 552887A CS 266112 B1 CS266112 B1 CS 266112B1
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Czechoslovakia
Prior art keywords
benzoylphenyl
compound
phenylpropane
diphenylpropane
phenyl
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CS875528A
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Czech (cs)
Slovak (sk)
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CS552887A1 (en
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Ivan Ing Csc Lukac
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Lukac Ivan
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Priority to CS875528A priority Critical patent/CS266112B1/en
Publication of CS552887A1 publication Critical patent/CS552887A1/en
Publication of CS266112B1 publication Critical patent/CS266112B1/en

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Abstract

Riešenie sa týká novej zlúčeniny 2-(4- -benzoylfenyl)-2-fenylpropánu. Uvedená zlúčenina sa připraví tak, že 2,2-difenylpropán a benzoylchlorid reagujú v přítomnosti bezvodého chloridu hlinitého v sírouhlíku pri teplote 23 až 26 °C. Zlúčenina má využitie pri príprave polymérov degradujúcich svetlom.The solution relates to a new compound 2-(4-benzoylphenyl)-2-phenylpropane. The compound is prepared by reacting 2,2-diphenylpropane and benzoyl chloride in the presence of anhydrous aluminum chloride in carbon disulfide at a temperature of 23 to 26 °C. The compound is useful in the preparation of photodegradable polymers.

Description

Vynález sa týká 2-(4-benzoylfenyl)-2-fenylpropánu.The invention relates to 2- (4-benzoylphenyl) -2-phenylpropane.

Friedel-Craftsova acylácia aromatických látok je široko študovaná.Friedel-Crafts acylation of aromatics is widely studied.

Je popísaná třeš benzoylácia difenylmetánu a 1,2-difenylpropánu za vzniku mono a disubsti tuovaného produktu φ. A. McCombs, C. S. Menon, J. Higgins, J. Polymer Sci., A-l, 9, 1 261 (1971)7· 2-(4-benzoylfenyl)-2-fenylpropán nie je popísaný v literatúre.Also described is the benzoylation of diphenylmethane and 1,2-diphenylpropane to form the mono and disubstituted product φ. A. McCombs, C. S. Menon, J. Higgins, J. Polymer Sci., A-1, 9, 1261 (1971) 7 2- (4-benzoylphenyl) -2-phenylpropane is not described in the literature.

Podstatou vynálezu je 2-(4-benzoylfenyl)-2-fenylpropán. Spdsob pripravy tejto zlúčeniny spočívá v tom, že 2,2-difenylpropán a benzyolchlorid reagujú v přítomnosti bezvodého chloridu hlinitého v sírouhliku pri teplote 23 až 26 °C.The present invention provides 2- (4-benzoylphenyl) -2-phenylpropane. A process for preparing this compound is characterized in that 2,2-diphenylpropane and benzyol chloride are reacted in the presence of anhydrous aluminum chloride in carbon disulfide at 23 to 26 ° C.

Výhodou uvedeného vynálezu je, že umožňuje připravit jednoducho predmetnú zlúčeninu v 40 %-nom výtažku.An advantage of the present invention is that it makes it possible to prepare the object of interest simply in a 40% yield.

Předmětná látka je medziproduktom pre přípravu monoméru a svetlom degradujúcich polymérov.The present substance is an intermediate for the preparation of monomer and light-degrading polymers.

PřikladExample

K suspenzii bezvodého chloridu hlinitého (48 g; 0,35 mol) v sírouhliku (80 ml) sa prikvap káva roztok 2,2-difenylpropánu (56 g; 0,287 mol) a benzoylchloridu (50 g; 0,35 mol) v sírouhlíku (80 ml) pri 23 až 26 °C. Pri danej teplote sa reakčná zmes mieša ešte 20 minút a vleje do zmesi konc. HC1 a ladu. Organická vrstva sa oddělí, premyje vodou, 10 % NaOH a vodou a zahustí. Destiláciou pri 212 °C a 67 Pa a kryštalizáciou z n-hexánu sa získá 34,8 g (40 %) bielej kryštalickej látky o t. t. 89 až 91 °C.To a suspension of anhydrous aluminum chloride (48 g; 0.35 mol) in carbon disulphide (80 ml) was added dropwise a solution of 2,2-diphenylpropane (56 g; 0.287 mol) and benzoyl chloride (50 g; 0.35 mol) in carbon disulphide ( 80 ml) at 23 to 26 ° C. The reaction mixture was stirred at this temperature for a further 20 minutes and poured into conc. HCl and ice. The organic layer was separated, washed with water, 10% NaOH and water and concentrated. Distillation at 212 ° C and 67 Pa and crystallization from n-hexane gave 34.8 g (40%) of a white crystalline solid, m.p. t. Mp 89-91 ° C.

Pre C22H2()O (300,39) vypočítané: 87,90 % C, 6,71 i H; nájdené: 87,79 % C, 6,76 % H.For C 22 H 2 O (300.39) calculated: 87.90% C, 6.71 i H; found: C, 87.79; H, 6.76.

IR (CC14) : 1 660 (C=0) , 1 600 cm-1 (C-H, aromatické). UV (CHClj) : 265 (log£= 4,35), 335 nm (2,41). 1H NMR: 1,61 (s, 6H, CHj), 6,90 až 7,83 (m, 14H, aromatické).IR (CC1 4): 1660 (C = 0), 1600 cm-1 (CH, aromatic). UV (CHCl 3): 265 (log δ = 4.35), 335 nm (2.41). 1 H NMR: 1.61 (s, 6H, CH 3), 6.90-7.83 (m, 14H, aromatic).

Vynález má použitie v chemickom priemysle pri príprave polymérov vyznačujúcich sa vysokou degradáciou ultrafialovým svetlom.The invention has application in the chemical industry in the preparation of polymers characterized by high degradation by ultraviolet light.

Claims (2)

PREDMET VYNÁLEZU 2- (4-benzoylfenyl)-2-fenylpropán.OBJECT OF THE INVENTION 2- (4-Benzoylphenyl) -2-phenylpropane.
CS875528A 1987-07-22 1987-07-22 2- (4-benzoylphenyl) -2-phenyl CS266112B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS875528A CS266112B1 (en) 1987-07-22 1987-07-22 2- (4-benzoylphenyl) -2-phenyl

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Application Number Priority Date Filing Date Title
CS875528A CS266112B1 (en) 1987-07-22 1987-07-22 2- (4-benzoylphenyl) -2-phenyl

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CS552887A1 CS552887A1 (en) 1989-03-14
CS266112B1 true CS266112B1 (en) 1989-11-14

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