Diels-Alder reactions of 2-Alkenylboranes and cis-1-alkenylboranes. Anomalous selectivity that allows a choice of regiochemistry
作者:Daniel A. Singleton、Kyeongsook Kim、Jose P. Martinez
DOI:10.1016/s0040-4039(00)93382-3
日期:1993.5
2-Alkenyl- and cis-1-alkenylboranes are highly reactive Diels-Alder dienophiles which display unusual selectivity patters. By taking advantage of a reversal of regiochemistry of reaction with alkenyldihalo- versus alkenyldialkylboranes, any desired regioisomeric product may be favored, usually with very high selectivity.
Diels–Alder reactions of pinacol alkenylboronates: an experimental and theoretical study
作者:Margarita M. Vallejos、Nicolás Grimblat、Silvina C. Pellegrinet
DOI:10.1039/c4ra07415g
日期:——
We have studied the Diels–Alder reactions of pinacol alkenylboronates with cyclopentadiene under two different sets of conditions: thermal heating at 170 °C in a pressure tube and with catalytic TFA (5 mol%) at 80 °C. Yields varied significantly from system to system and also for the uncatalyzed and catalyzed methodologies. Moderate to excellent exo-stereoselectivities were obtained in all cases. The
Structural effects in solvolytic reactions. XI. Rates and products of solvolysis of 2-aryl- and 2-methyl-2-norbornenyl p-nitrobenzoates. Exo:endo rate ratio as a function of increasing electron demand
作者:Herbert C. Brown、Edward N. Peters
DOI:10.1021/ja00859a010
日期:1975.12
Coindard,G.; Braun,J., Bulletin de la Societe Chimique de France, 1972, p. 817 - 821
作者:Coindard,G.、Braun,J.
DOI:——
日期:——
Stereoselectivity in the nonconcerted reductive rearrangement of some bicyclic spirooxides