中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2'-<2-(ethoxycarbonyl)-1-oxo-2-(triphenylphosphoranylidene)ethyl>-1,1'-biphenyl-2-carboxylic acid | 135779-10-1 | C36H29O5P | 572.597 |
An X-ray crystal structure and 1H n.m.r. analysis of the biphenyl phosphorane (4a) has revealed the presence of an intramolecular hydrogen bond resulting in an unusual biphenyl with a bridge forming a nine- membered ring. The related biphenyl phosphorane (4b) exists as two diastereoisomers.