Efficient synthesis of fumaric amides through cross-metathesis of acrylic amides with the NHC Grubbs ruthenium catalyst
摘要:
Application of the second generation Grubbs metathesis catalyst for the homo-cross-metathesis of acroyl amides from chiral amines is reported. This efficient and high-yielding reaction provides a side-product free synthesis of fumaric acid diamides which are formed with complete (E)-selectivity under the reaction conditions. In particular, products which cannot be synthesized from the corresponding fumaroyl chloride via classic condensation route can now be provided in excellent yields (88-98%) with a catalyst loading from 2.5 mol% to even 0.375 mol%. (c) 2005 Elsevier B.V. All rights reserved.
Über alkylierte Amide bicyclischer Dicarbonsäuren, 4. Mitt.:
作者:H. Koch、J. Kotlan
DOI:10.1007/bf01185918
日期:1965.11
A New Reaction of Nitriles. III. Amides from Dinitriles
作者:Frederic R. Benson、John J. Ritter
DOI:10.1021/ja01180a075
日期:1949.12
Synthesis of Some Unsymmetrical Bridged Terpyridines
作者:T. Ross Kelly、Rimma L. Lebedev
DOI:10.1021/jo016250v
日期:2002.4.1
Novel unsymmetrical terpyridines 1 and 2 are synthesized using intra- and intermolecular Michael additions as the key reactions, followed by the construction of the central pyridine ring. Terpyridine 1 represents a heretofore unknown hexacyclic ring system.
Efficient synthesis of fumaric amides through cross-metathesis of acrylic amides with the NHC Grubbs ruthenium catalyst
作者:Jan Streuff、Kilian Muñiz
DOI:10.1016/j.jorganchem.2005.07.116
日期:2005.12
Application of the second generation Grubbs metathesis catalyst for the homo-cross-metathesis of acroyl amides from chiral amines is reported. This efficient and high-yielding reaction provides a side-product free synthesis of fumaric acid diamides which are formed with complete (E)-selectivity under the reaction conditions. In particular, products which cannot be synthesized from the corresponding fumaroyl chloride via classic condensation route can now be provided in excellent yields (88-98%) with a catalyst loading from 2.5 mol% to even 0.375 mol%. (c) 2005 Elsevier B.V. All rights reserved.