作者:Yasushi Tsuji、Tetsuya Ishii
DOI:10.1016/0022-328x(92)80021-o
日期:1992.2
carbon monoxide (1 atm, balloon) at room temperature overnight (16–18 h), and then the reaction mixture was added to various allyl derivatives in the presence of palladium catalyst (5 mob% based on the allylic derivatives) at room temperature. From 1b and cinnamyl acetate in the presence of tetrakis(triphenylphosphine)palladium, (E)-3,3-dimethyl-6-phenyl-5-hexen-2-one (5a) was afforded in 57% yield. A similar
将三异丙氧基甲基钛(1a)或二异丙氧基二甲基钛(1b)在室温下用一氧化碳(1个大气压,气球)处理过夜(16-18小时),然后在钯催化剂存在下将反应混合物添加到各种烯丙基衍生物中(5在室温下,基于烯丙基衍生物的摩尔百分数)。在四(三苯基膦)钯存在下,由1b和乙酸肉桂酯提供(E)-3,3-二甲基-6-苯基-5-己烯-2-酮(5a),产率为57%。与反式-2-己烯基乙酸酯的类似反应也以57%的产率得到了相应的γ,δ-不饱和酮。该产物的形成将由钛η合理化2-酰基和羰基化合物的中间体。