Skip to main content
Article
Synthesis of Osmium meso-Tetra-p-tolylporphyrin Carbene Complexes (TTP)Os=CRR' (R, R' = p-Tolyl; R = H, R' = SIMe3, C02Et): Stereoselective, Catalytic Production of Olefins
Organometallics
  • L. Keith Woo, Iowa State University
  • Daniel A. Smith, Iowa State University
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
7-1-1992
DOI
10.1021/om00043a011
Abstract
A series of osmium meso -tetra-p -tolylporphyrln carbene complexes, (lTP)Os=CRR' [R, R' = p-tolyl (1); R = H, R' = SIMe3 (2), CO~t (3)], have been prepared by treating [ Os(TTP)] 2 with the appropriate dla· zoalkane (N2CRR'). The carbene complexes, 1-3, and the osmium complexes [Os(TTP)]2, Os(TTPXCOXpy), and Os(lTPXpy)2 catalytically convert ethyl dlazoacetate to dlethyl maleate and dlethyl fumarate In high yields and high stereoselectlvlty. The Z/Eratios range from 18:1 to 26:1. Olefin also can be produced from N2C(p-C8H4- CH3)2 but not from N2CHSIMe3•
Comments

Reprinted (adapted) with permission from Organometallics 11 (1992): 2344, doi:10.1021/om00043a011. Copyright 1992 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
File Format
application/pdf
Citation Information
L. Keith Woo and Daniel A. Smith. "Synthesis of Osmium meso-Tetra-p-tolylporphyrin Carbene Complexes (TTP)Os=CRR' (R, R' = p-Tolyl; R = H, R' = SIMe3, C02Et): Stereoselective, Catalytic Production of Olefins" Organometallics Vol. 11 Iss. 7 (1992) p. 2344 - 2346
Available at: http://works.bepress.com/l-woo/59/