MICROWAVE-ACCELERATED SYNTHESIS OF 4-CHLOROTETRAHYDROPYRANS BY BISMUTH(III) CHLORIDE*
作者:J. S. Yadav、B. V. Subba Reddy、Ch. Venugopal、R. Srinivas、T. Ramalingam
DOI:10.1081/scc-120004059
日期:2002.1.1
ABSTRACT The cross-coupling reaction of homoallyl alcohols with aldehydes in the presence of bismuth trichloride in solvent-free conditions generated 4-chloro-2,6-disubstituted tetrahydropyrans in high yields with high diastereoselectivity. Improved yields and reduced reaction times are achieved in this transformation by employing microwave irradiation. * IICT Communication No. 4702.
摘要 在无溶剂条件下,在三氯化铋存在下,高烯丙醇与醛的交叉偶联反应以高产率和高非对映选择性生成 4-氯-2,6-二取代四氢吡喃。通过使用微波辐射,在这种转化中实现了产率的提高和反应时间的缩短。* IICT 通讯第 4702 号。