Ruthenium-catalyzed reaction of carbon dioxide, amine, and acetylenic alcohol
作者:Yoshiyuki Sasaki、Pierre H. Dixneuf
DOI:10.1021/jo00228a046
日期:1987.9
Catalytic formation of carbamates and cyclic carbonates by copper complex of 2,5,19,22-tetraaza[6,6](1,1′)ferrocenophane-1,5-diene X-ray crystal structure of [Cu(1)]PF6
作者:Hak-Soo Kim、Jeong-Won Kim、Soon-Chul Kwon、Sang-Chul Shim、Tae-Jeong Kim
DOI:10.1016/s0022-328x(97)00366-5
日期:——
The reaction of [Cu(MeCN)(4)]PF6 with a ferrocene-containing tetraazamacrocycle 2,5,19,22-tetraaza[6,6](1,1')ferrocenophane-1,5-diene (1) gives the copper(I) complex of the type [Cu(1)]PF6 (2) which crystallizes in the orthorhombic system: P2(1)2(1)2(1) (#19); a = 7.597(2) Angstrom, b = 14.805(5) Angstrom, c = 24.194(4) Angstrom; Z = 4; R = 0.080; R-w = 0.083. The geometry around the central metal is a distorted tetrahedron with two pairs of differing Cu-N bond length. This complex has demonstrated the excellent catalytic activity toward the formation of cyclic carbonates and carbamates in the presence of CO2, giving almost quantitative product yields in most reactions that have been employed. (C) 1997 Elsevier Science S.A.
SASAKI, YOSHIYUKI;DIXNEUF, PIERRE H., J. ORG. CHEM., 52,(1987) N 19, 4389-4391