Chemistry and Structure of anti-(Z)- and syn-(E)-Bis(fenchylidene)
摘要:
anti-(Z)-Bis(fenchylidene) (3) has been prepared. The crystal structure of 3 displays an alkene torsion angle of 17.0-degrees and deformations of the carbon-carbon bond lengths and angles around the alkene center. The chemical behavior of syn-(E)-bis(fenchylidene) (2) and 3 was found to be affected by the steric strain.
“Tied-back” carbocyclic intermediates in the preparation of very sterically strained olefins: Derivatives of tetra--butylethylene
作者:Edward R. Cullen、Frank S. Guziec、Mitchell I. Hollander、Christopher J. Murphy
DOI:10.1016/s0040-4039(01)82982-8
日期:1981.1
The preparations of the extremely sterically hindered olefins (12) and-(13) are described, and attempts to convert these compounds to other derivatives of tetra--butylethylene (1) are outlined.
Synthesis and properties of monomeric selenoketones
作者:Thomas G. Back、Derek H. R. Barton、Michael R. Britten-Kelly、Frank S. Guziec
DOI:10.1039/c39750000539
日期:——
The preparation and reactions of di-t-butyl selenoketone (Ib) and of (–)-selenofenchone (IIb) are described; fenchylidenefenchane (VI) has been synthesised.
Chemistry and Structure of anti-(Z)- and syn-(E)-Bis(fenchylidene)
作者:Peter R. Brooks、Roger Bishop、James A. Counter、Edward R. T. Tiekink
DOI:10.1021/jo00085a027
日期:1994.3
anti-(Z)-Bis(fenchylidene) (3) has been prepared. The crystal structure of 3 displays an alkene torsion angle of 17.0-degrees and deformations of the carbon-carbon bond lengths and angles around the alkene center. The chemical behavior of syn-(E)-bis(fenchylidene) (2) and 3 was found to be affected by the steric strain.
Back,T.G. et al., Journal of the Chemical Society. Perkin transactions I, 1976, p. 2079 - 2089