作者:Achim Löffler、Gerhard Himbert
DOI:10.1055/s-1994-25482
日期:——
3,4,4-Trichloro-1-trimethylhydrazino-3-buten-1-yne (3), obtained from perchlorobutenyne (1) and trimethylhydrazine (2) forms the novel (1,3-butadiynyl)hydrazines 6 by consecutive treatment with butyllithium and various electrophiles. On the other hand the 4-diethylamino-1-trimethylhydrazino-1,3-butadiyne (7) can be prepared by simultaneous treatment of 3 with butyllithium and lithium diethylamide. The 4-butyl and 4-phenyl substituted (1,3-butadiynyl)hydrazines 9 are obtained by the reaction of the corresponding 1,1-dichloro-l-buten-3-ynes 8 with two equivalents of lithium trimethylhydrazide. The reactivity of the new ynehydrazine derivatives 3,6and 9 toward electron-deficient olefins 11 and the α-pyrone 13 is examined.
由全氯丁烯炔 (1) 和三甲基肼 (2) 连续处理得到的 3,4,4-三氯-1-三甲基肼基-3-丁烯-1-炔 (3) 形成新型 (1,3-丁二炔基)肼 6丁基锂和各种亲电子试剂。另一方面,4-二乙基氨基-1-三甲基肼基-1,3-丁二炔(7)可以通过用丁基锂和二乙基氨基锂同时处理3来制备。 4-丁基和4-苯基取代的(1,3-丁二炔基)肼9是通过相应的1,1-二氯-1-丁烯-3-炔8与两当量的三甲基酰肼锂反应获得的。研究了新型炔肼衍生物 3,6 和 9 对缺电子烯烃 11 和 α-吡喃酮 13 的反应性。