First allylboration of organic compounds with the NN double bond. Synthesis of N-allylpyrazolidines and allyl-1,2-diphenylhydrazine
作者:Ivan P. Klimenko、Andrey F. Medvedev、Victor A. Korolev、G.D. Kolomnikova、Yury V. Tomilov、Yuri N. Bubnov
DOI:10.1016/j.jorganchem.2009.02.012
日期:2009.6
Triallylborane adds to the NN double bond of pyrazolines 1 and 2 at 0 °C giving after deboronation the corresponding N-allylpyrazolidines 4 and 5. Further transformations of allylpyrazolidine 4 including the cyclopropane ring opening were studied. Allylboration of azobenzene with triallylborane gives rise to 1-allyl-1,2-diphenylhydrazine.
三烯丙基硼烷在0°C下将吡唑啉1和2的N N双键加成,在脱硼后得到相应的N-烯丙基吡唑烷4和5。研究了包括环丙烷开环在内的烯丙基吡唑烷4的进一步转化。偶氮苯与三烯丙基硼烷的烯丙基硼化生成1-烯丙基-1,2-二苯肼。