发明授权
US07014697B2 Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds 失效
通过乙酰丙酸酯的还原胺化制备5-甲基-N-(甲基芳基)-2-吡咯烷酮,5-甲基-N-(甲基环烷基)-2-吡咯烷酮和5-甲基-N-烷基-2-吡咯烷酮 与氰基化合物

  • 专利标题: Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds
  • 专利标题(中): 通过乙酰丙酸酯的还原胺化制备5-甲基-N-(甲基芳基)-2-吡咯烷酮,5-甲基-N-(甲基环烷基)-2-吡咯烷酮和5-甲基-N-烷基-2-吡咯烷酮 与氰基化合物
  • 申请号: US10966123
    申请日: 2004-10-15
  • 公开(公告)号: US07014697B2
    公开(公告)日: 2006-03-21
  • 发明人: Leo Ernest Manzer
  • 申请人: Leo Ernest Manzer
  • 申请人地址: US DE Wilmington
  • 专利权人: E.I. du Pont de Nemours and Company
  • 当前专利权人: E.I. du Pont de Nemours and Company
  • 当前专利权人地址: US DE Wilmington
  • 代理商 Gerald E. Deitch
  • 主分类号: C09D11/00
  • IPC分类号: C09D11/00 C07D207/12
Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds
摘要:
This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a metal catalyst, which is optionally supported.
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