Influence of strain on chemical reactivity. Relative reactivity of torsionally distorted double bonds in MCPBA epoxidations
作者:Kenneth J. Shea、Jang Seob Kim
DOI:10.1021/ja00034a042
日期:1992.4
The second-order reaction rata were measured for the MCPBA epoxidation in CH 2 Cl 2 for a series of cyclic olefins including bridgehead olefins and trans-cycloalkenes. As expected, strained bridgehead alkenes and trans-cycloalkenes showed faster reaction rates than nonstrained cis-cycloalkenes. The MM-2 steric energies of alkenes, alkanes, and their corresponding epoxides were calculated to evaluate
Zur Kenntnis des Kohlenstoffringes. 62. Mitteilung. Zur Kenntnis des Neuringes. Über die transanulare Oxydation der Cyclonene zu Cyclononandiolen-(1,5)
作者:V. Prelog、K. Schenker、W. Küng
DOI:10.1002/hlca.19530360216
日期:——
Die Herstellung des Cyclononins und der beiden stereoisomeren Cyclononene wird beschrieben.
描述了环壬宁和两种立体异构体环壬烯的制备。
Molybdenum-catalyzed episulfidation of (E)-cycloalkenes with elemental sulfur
作者:Waldemar Adam、Rainer M. Bargon
DOI:10.1039/b106433a
日期:——
Episulfidation of (E)-cyclooctene and (E)-cyclononene was achieved with elemental sulfur by using a catalytic amount of a molybdenum oxo complex.
(E)-环辛烯和(E)-环壬烯的环硫化是通过使用催化量的钼羰基配合物与元素硫实现的。
Influence of strain on chemical reactivity. Relative reactivity of torsionally strained double bonds in 1,3-dipolar cycloadditions
作者:Kenneth J. Shea、Jang Seob Kim
DOI:10.1021/ja00038a059
日期:1992.6
alkenes showed reversed regiochemistry of cycloaddition when compared with model alkenes. It is proposed that the reversal of regiochemistry is caused by the out of plane bending of the bridgehead double bond