Open-Chain Reissert Compounds: One-Pot Synthesis and Utility in Synthesis of Unsymmetrical Imides, .alpha.-Acylamino Carboxamides, Imidazolinones, and Hydantoins
摘要:
Acyclic Reissert compounds 2 and bis(Reissert compound)s 3-5 can be conveniently prepared in a biphasic system without isolation of the intermediate cr-amino nitriles. Treatment of 2 with sodium hydride affords substituted unsymmetrical imides such as 8. Oxidative hydrolysis of 2 by hydrogen peroxide converts the nitrile groups to primary amides, giving acyl derivatives of alpha-amino carboxamides 9, whereas substituted analogs 7 undergo cyclization to imidazolinones 11. Hydrogen peroxide treatment of alpha-cyano carbamate Reissert compounds, substituted (13) or not (12), affords substituted hydantoins 14.
DOI:
10.1021/jo00084a025
作为产物:
描述:
正己胺 、 三甲基氰硅烷 、 苯甲醛 在
azaphosphatrane salt on Merrifield resin 作用下,
以
乙腈 为溶剂,
反应 15.0h,
以99%的产率得到α-(hexylamino)-benzeneacetonitrile
参考文献:
名称:
[HP(HNCH2CH2)3N]NO3: an efficient homogeneous and solid-supported promoter for aza and thia-Michael reactions and for Strecker reactions
摘要:
In the presence of a catalytic amount of an azaphosphatrane nitrate salt, amines and thiols react readily with Michael acceptors. The salt is also an efficient promoter for the one pot synthesis of alpha-amino and alpha-amidonitriles. By anchoring the salt to Merrifield Resin, a reusable heterogeneous catalyst is obtained for these reactions. Evidence is presented for catalysis being attributable solely to the NO3- ion. (c) 2005 Elsevier Ltd. All rights reserved.
[HP(HNCH2CH2)3N]NO3: an efficient homogeneous and solid-supported promoter for aza and thia-Michael reactions and for Strecker reactions
作者:Brandon M. Fetterly、Nirmal K. Jana、John G. Verkade
DOI:10.1016/j.tet.2005.09.117
日期:2006.1
In the presence of a catalytic amount of an azaphosphatrane nitrate salt, amines and thiols react readily with Michael acceptors. The salt is also an efficient promoter for the one pot synthesis of alpha-amino and alpha-amidonitriles. By anchoring the salt to Merrifield Resin, a reusable heterogeneous catalyst is obtained for these reactions. Evidence is presented for catalysis being attributable solely to the NO3- ion. (c) 2005 Elsevier Ltd. All rights reserved.
Open-Chain Reissert Compounds: One-Pot Synthesis and Utility in Synthesis of Unsymmetrical Imides, .alpha.-Acylamino Carboxamides, Imidazolinones, and Hydantoins
作者:Jean-Pierre Leblanc、Harry W. Gibson
DOI:10.1021/jo00084a025
日期:1994.3
Acyclic Reissert compounds 2 and bis(Reissert compound)s 3-5 can be conveniently prepared in a biphasic system without isolation of the intermediate cr-amino nitriles. Treatment of 2 with sodium hydride affords substituted unsymmetrical imides such as 8. Oxidative hydrolysis of 2 by hydrogen peroxide converts the nitrile groups to primary amides, giving acyl derivatives of alpha-amino carboxamides 9, whereas substituted analogs 7 undergo cyclization to imidazolinones 11. Hydrogen peroxide treatment of alpha-cyano carbamate Reissert compounds, substituted (13) or not (12), affords substituted hydantoins 14.