Conformational analysis. LXII. solvolysis and deamination studies of the 5-t-butylcylooctyl system.
作者:N.L. Allinger、W. Szkrybalo
DOI:10.1016/s0040-4020(01)98666-1
日期:1968.1
The solvolyses of cis- and trans-5-t-butylcyclooctyl tosylates in acetic acid have been studied, and the rates and products are reported. The fast rate and rearranged product from the cis isomer are interpreted in terms of neighboring group participation by hydride. Improved syntheses of the compounds are given. Deamination reactions of the corresponding amines were also studied, and a product study
The addition of alkyllithium reagents to trans-cyclooctene. The facile elimination of lithium hydride in the cyclooctyl ring
作者:Robert D. Bach、Kenneth W. Bair、Carl L. Willis
DOI:10.1016/s0022-328x(00)89417-6
日期:1974.9
The addition of s-butyllithium and t-butyllithium to trans-cyclooctene has been shown to occur very readily. The facile elimination of lithium hydride from s-cyclooctyllithium compounds affording cyclooctenes is also reported.
η<sup>3</sup>-Allylpalladium Complexes from Medium-Ring Cycloalkenes
作者:Jean-Marie Rosset、Matthew P. Glenn、John D. Cotton、Anthony C. Willis、Colin H. L. Kennard、Karl A. Byriel、Bruce H. Riches、William Kitching
DOI:10.1021/om971132c
日期:1998.5.1
The dimeric eta(3)-allylpalladium chloride complexes formed from various cycloalkenes (C-7-C-13) and some methyl-and tert-butyl-substituted cycle alkenes have be en characterized by H-1 and C-13 NMR spectroscopy and in selected cases by X-ray crystallography. The formation of syn and anti isomers in the larger ring systems is demonstrated, and complexes with a rearranged ring system are formed from tert-butylcyclodecene and tert-butylcyclododecene. The sesquiterpene, carophyllene, is shown to form an eta(3)-allyl exocyclic complex, exclusively from the (E)-double bond. Cis and trans isomers, with respect to allyl group orientation in these halo-bridged dimers, have been identified by low-temperature (190K) NMR spectroscopy, and their interconversion (Delta G(double dagger) approximate to 11 kcal/mol) is considered to involve a "cubic" eta(3)-allylpalladium chloride tetramer.
Regioselective Formation of Cyclic and Allylic Hydroperoxides
作者:Manolis Stratakis、Michael Orfanopoulos
DOI:10.1080/00397919308009797
日期:1993.2
A regioselective photosensitized oxygenation is reported for the preparation of cyclic and allylic hydroperoxides.
SCHNEIDER H.-J.; HEISKE D., J. AMER. CHEM. SOC., 1981, 103, NO 12, 3501-3505