The synthesis of 3,3,4,4-tetraphenyl-2-butanone from 1,1-diphenylacetone

被引：1
|
作者：
Zieger, HE
Tsang, CH
Malik, M
Todaro, LJ
机构：
[1] CUNY Brooklyn Coll, Dept Chem, Brooklyn, NY 11210 USA
[2] CUNY Hunter Coll, Dept Chem, New York, NY 10021 USA
来源：
TETRAHEDRON LETTERS | 2002年 / 43卷 / 27期
关键词：
D O I：
10.1016/S0040-4039(02)00861-4
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The preparation of 3,3.4,4-tetraphenyl-2-butanone by treatment of 1,1-diphenylacetone(1,1-DPA) with potassium-t-butoxide or lithium diisopropyl amide in THF at 0degreesC followed by heating with a diphenylmethythalide is described. A single crystal X-ray analysis on the new ketone shows that the molecule crystallizes in a conformation in which the carbonyl group is not eclipsed with the benzylic hydrogen, but has a torsional angle of +41degrees toward a gauche (120degrees) conformation. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：4845 / 4848
页数：4
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