(Z)-2-(buta-1,3-dienyl)phenols 6 and 2-methyl-2H-chromenes 7 from simple starting materials was achieved for the first time through ring-closing metathesis/base-induced ring opening/[1,7]-sigmatropic hydrogen shift reactions. The synthesis of privileged (Z)-2-(buta-1,3-dienyl)phenols 6 via base-induced ring opening of highly functionalized benzo[b]oxepines 5 is described(© Wiley-VCH Verlag GmbH &
一种用于合成高度取代的苯并[b]氧杂
环庚烷 5、(Z)-2-(buta-1,3-dienyl)phenols 6 和 2-methyl-2H-chromenes 7 的实用且简单的一锅多催化工艺首次通过闭环复分解/碱诱导开环/[1,7]-σ-σ 氢位移反应从简单的起始材料中获得。描述了通过碱诱导的高度官能化苯并 [b] 氧杂
环庚烷 5 开环合成特权 (Z)-2-(buta-1,3-dienyl)phenols 6 (© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 魏因海姆,德国,2008)