Heterosubstituted or Functionalized Derivatives of 1- and 2-(Trifluoromethyl)naphthalenes Emanating from Aryne Adducts
作者:Manfred Schlosser、Frédéric Bailly、Fabrice Cottet
DOI:10.1055/s-2005-861813
日期:——
the (trifluoromethyl)naphthols and transformed to the dibromo adducts. The latter were stereoselectively converted into the bromo-1,4-epoxy-1,4-dihydro(trifluoromethyl)naphthalenes and, by deoxygenation, into various bromo(trifluoromethyl)naphthalenes. Trifluoromethyl substituted naphthoic acids were obtained when the bromo compds. were subjected to a halogen/metal permutation followed by carboxylation
超过两打新的 CF3 取代的萘衍生物。准备好了。以方便的方式使用 3- 和 4-(三氟甲基) 苄基作为关键中间体。用丁基锂处理2-和4-氯代苯并三氟并让由此产生的有机金属物质分解。在呋喃的存在下。所得的环加合物被还原为(三氟甲基)萘,开环为(三氟甲基)萘酚并转化为二溴加合物。后者立体选择性地转化为溴-1,4-环氧-1,4-二氢(三氟甲基)萘,并通过脱氧作用转化为各种溴(三氟甲基)萘。当溴化合物发生反应时,得到三氟甲基取代的萘甲酸。进行卤素/金属置换,然后进行羧化。[关于 SciFinder (R)]