Intramolecular Cyclization of 4-[3-(Trimethylsilyl)prop-1-en-1-yl]cyclohexanecarbaldehyde with Loss of Formyl Carbon
作者:Chiaki Kuroda、Atsushi Murase、Hideyuki Suzuki、Toru Endo、Shuzo Anzai
DOI:10.1246/bcsj.71.1639
日期:1998.7
and trans-4-[3-(trimethylsilyl)prop-1-en-1-yl]cyclohexanecarbaldehyde (2a and 2b) with tetrabutylammonium fluoride in dilute tetrahydrofuran afforded 7-vinylbicyclo[2.2.1]heptan-1-ol (3), the same product obtained from 4-[3-(trimethylsilyl)prop-1-en-1-yl]cyclohexanone (1). It was found that oxidative deformylation of 2a, b to 1 takes place under basic conditions before the cyclization to 3. It was also
在稀四氢呋喃中用四丁基氟化铵处理顺式和反式 4-[3-(三甲基甲硅烷基)prop-1-en-1-yl] 环己烷甲醛 (2a 和 2b),得到 7-乙烯基双环 [2.2.1] 庚烷-1- ol (3),从 4-[3-(三甲基甲硅烷基)prop-1-en-1-yl] 环己酮 (1) 获得的相同产物。发现 2a、b 到 1 的氧化去甲酰化在环化成 3 之前在碱性条件下发生。还表明烯丙基硅烷与羰基的环化不通过重叠构象进行。