Zinc catalyzed Guanylation reaction of Amines with Carbodiimides/ Isocyanate leading to Guanidines/Urea derivatives formation
作者: JAYEETA BHATTACHARJEEMITALI SACHDEVAINDRANI BANERJEETARUN K PANDA
作者单位: 1Indian Institute of Technology Hyderabad
刊名: Journal of Chemical Sciences, 2016, Vol.128 (6), pp.875-881
来源数据库: Springer Journal
DOI: 10.1007/s12039-016-1096-y
关键词: CarbodiimideisocyanateguanidineureaZn catalystguanylation.
英文摘要: Abstract(#br)We report the highly chemo-selective catalytic addition of N–H bonds from various aromatic amines to carbodiimides and isocyanates using (Ar-BIAO)ZnCl2 complexes [Ar-BIAO = N -(aryl)imino-acenapthenone, Ar = 2,6-Me2C6H3 ( 1 ), 2,4,6 Me3C6H2 ( 2 ), 2,6-iPr2C6H3 ( 3 )] as the pre-catalyst to prepare guanidine and urea derivatives in 55-90% yield. The complex 3 showed higher catalytic activity than analogous complexes 1 and 2 under similar reaction conditions. The catalytic guanylation of N–H bonds with heterocumulenes displays a broad substrate scope. The amines having electron donating groups underwent higher conversion than the amines having electron...
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影响因子:1.298 (2012)

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关键词翻译
关键词翻译
  • catalyzed 催化的
  • reaction 反酌
  • derivatives 派生物
  • leading 包铅
  • formation 建造