作者:Xavier Herault、Edward Mc Nelis
DOI:10.1016/0040-4020(96)00561-3
日期:1996.7
1-Haloethynyl-2-methylcyclopentanols treated with iodine and HTIB ring expand stereoselectively depending on the relative position of the methyl and the hydroxyl groups. The products are 2-(dihalomethylidene)-3-methylcyclohexanones if the methyls are cis to the hydroxyl groups or 2-(dihalomethylidene)-6-methylcyclohexanones if the methyls are trans to the hydroxyls.
用碘和HTIB环处理的1-卤代乙炔基-2-甲基环戊醇根据甲基和羟基的相对位置而立体选择性地膨胀。该产品是2-(二卤代)-3- methylcyclohexanones如果甲基的是顺式的羟基基团或2-(二卤代)-6- methylcyclohexanones如果甲基的是反式的羟基。