10441-73-3Relevant articles and documents
Recyclable gallium(III) triflate-catalyzed [4+3] cycloaddition for synthesis of 2,4-disubstituted-3H-benzo[b][1,4]diazepines
Huang, Shi-Gang,Mao, Hai-Feng,Zhou, Shao-Fang,Zou, Jian-Ping,Zhang, Wei
supporting information, p. 6178 - 6180 (2013/10/22)
Simple and efficient Ga(OTf)3-catalyzed [4+3] cycloaddition of 1,3-diarylpropynones and o-phenylenediamines is developed for the preparation of 2,4-disubstituted-3H-benzo[b][1,4]diazepines. The reaction has advantages of using a green solvent, generating a minimal amount of waste, and easy catalyst recycle.
Reactions of β-Sulfenyl α,β-Unsaturated Ketones with Guanidine, Amidines and Diamines
Nishio, Takehiko,Tokunaga, Tatsuhiro,Omote, Yoshimori
, p. 405 - 407 (2007/10/02)
β-Sulfenyl α,β-unsaturated ketones 1a-c reacted with guanidine or amidines to give pyrimidine derivatives 3 in 14-76percent yields.Treatment of ketones 1 with diamines such as ethylenediamine and o-phenylenediamine afforded the seven-membered heterocycles, 2,3-dihydro-1,4-diazepine 5 and 2,3-benzo-1,4-diazepines 8a-c.