The first organocatalytic carbonyl-ene reaction: isomerisation-free C-C bond formations catalysed by H-bonding thio-ureas

نویسندگان

  • Matthew L Clarke
  • Charlotte ES Jones
  • Marcia B France
چکیده

Intramolecular carbonyl ene reactions of highly activated enophiles can be catalysed by H-bonding thio-ureas to give tertiary alcohols in high yields without extensive isomerisation side products. An asymmetric variant of this reaction was realised using a chiral thiourea but was limited by low enantioselectivity (up to 33% e.e.) and low turnover frequencies.

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عنوان ژورنال:
  • Beilstein Journal of Organic Chemistry

دوره 3  شماره 

صفحات  -

تاریخ انتشار 2007