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Ruthenium‐Catalyzed Allenyl Carbamate Formation from Propargyl Alcohols and Isocyanates
Author(s) -
Haak Edgar
Publication year - 2008
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200701067
Subject(s) - ruthenium , propargyl , chemistry , catalysis , carbamate , organic chemistry , propargyl alcohol , combinatorial chemistry , polymer chemistry
Abstract Ruthenium complexes of redox‐coupled cyclopentadienone ligands catalyze the formation of allenyl carbamates from propargyl alcohols and isocyanates. This efficient and atom‐economical process represents the first catalytic access to allenyl carbamates, compounds of high synthetic potential. The reaction needs an acidic co‐catalyst and can be performed at room temperature. In addition, new (cyclopentadienone)iron and ‐ruthenium complexes were synthesized, and mechanistic aspects regarding catalytic transformations of propargyl systems with ruthenium catalysts are obtained. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)