作者:Jotham W. Coe、Michael C. Wirtz、Crystal G. Bashore、John Candler
DOI:10.1021/ol049655l
日期:2004.5.1
Noncoordinating solvents permit the halogen-metal exchange-induced formation of benzyne (aryne) from di- and trihalobenzene precursors in the presence of cyclopentadiene to give 1,4-dihydro-1,4-methano-naphthalenes. Studies with mixed halide precursors and nonacidic Diels-Alder diene traps reveal that ethereal and hydrocarbon solvents influence the halide leaving group facility, resulting in a reversal
非配位溶剂允许在环戊二烯存在下由二卤代和三卤代苯前体通过卤素金属交换诱导形成苯炔(芳烃),从而生成1,4-二氢-1,4-甲基-萘。对混合卤化物前体和非酸性Diels-Alder二烯陷阱的研究表明,醚和烃类溶剂会影响卤化物的离去基团,从而逆转3-卤代苯炔的区域选择性。