Reactions of Vinylidenecyclopropanes with Diphenyl Diselenide in the Presence of AIBN and Thermally-Induced Further Transformations
作者:Wei Yuan、Yin Wei、Min Shi、Yuxue Li
DOI:10.1002/chem.201103461
日期:2012.1.27
vinylidenecyclopropanes with diphenyl diselenide in the presence of AIBN and upon heating gives the corresponding bicyclo[3.1.0]hexane derivatives in good yields. These compounds undergo thermal‐induced radical 1,4‐hydrogen shifts through a ring‐opening pathway of allylic cyclopropane to give the corresponding cyclohexene derivatives stereoselectively in good yields at 200 °C (see scheme).
Regioselective Cross-Metathesis Reaction Induced by Steric Hindrance
作者:Samir BouzBouz、Rebecca Simmons、Janine Cossy
DOI:10.1021/ol049079t
日期:2004.9.1
[reaction: see text] When hexa-1,5-dien-3-ol is protected with bulky groups, a regioselective cross-metathesis reaction can take place at the C5-C6 double bond.
Organoyttrium-Catalyzed Sequential Cyclization/Silylation Reactions of 1,5-Dienes and 1,6-Dienes
作者:Gary A. Molander、Paul J. Nichols
DOI:10.1021/ja00120a031
日期:1995.4
Regioselectivity and Stereoselectivity in Nitrile Oxide Cycloaddition to 1, 5-Hexadien-3-ol. The Study on the Hydrogen Bonding Effect and Magnesium Chelation Effect in Nitrile Oxide Cycloaddition
作者:Jae Nyoung Kim、Hyoung Rae Kim、Eung K. Ryu
DOI:10.1080/00397919308011265
日期:1993.6
1,3-Dipolar cycloaddition of 2,6-dichlorobenzonitrile oxide and 1.5-hexadien-3-ol showed regioselectivity to some extent by their hydrogen bonding effect. The chelation of magnesium metal instead of hydrogen bonding in the same reaction showed an excellent regioselectivity along with a good diastereoselectivity.
Organoyttrium-catalyzed cyclization of substituted 1,5- and 1,6-dienes