TY - JOUR
T1 - Preparation, structure and reactivity of aminocarbene complexes of chromium and molybdenum derived from primary amines
AU - Denise, B.
AU - Dubost, P.
AU - Parlier, A.
AU - Rudler, M.
AU - Rudler, H.
AU - Daran, J. C.
AU - Vaissermann, J.
AU - Delgado, F.
AU - Arevalo, A. R.
AU - Toscano, R. A.
AU - Alvarez, C.
N1 - Funding Information:
To Commission of the European Communities (Directorate general for Science, Reasearch and Development, Brussels, Belgium) and to CONACYT (Mexico) for financial support to C. Alvarez and H. Rudler.
PY - 1991/11/5
Y1 - 1991/11/5
N2 - The synthesis and reactivity towards diphenylacetylene of a series of aminocarbene complexes of general structure (CO)5MC(NHR′)R (M = Cr, R = CH3, Ph, R' = cyclohexyl, cyclopropyl, benzyl) are described: they lead by alkyne insertion followed by a 1,4 hydrogen shift, to imine complexes, which, upon hydrolysis, give the corresponding ketones. When R′CH2Ph, along with the expected imine, a tetraphenylcyclopentadiene resulting from the coupling of two PhCCPh and of a carbene moiety, is formed; its structure has been determined by an X-ray study. In the case of aminopyridine, bidentate carbene complexes (the structure of which was confirmed by an X-ray study of (CO)4CrC (CH3)NHNC5H5) are formed, and these also react with PhCCPh to give for M = Mo, new pyrrolinones through alkyne/CO insertion followed by a 1,2 hydrogen shift.
AB - The synthesis and reactivity towards diphenylacetylene of a series of aminocarbene complexes of general structure (CO)5MC(NHR′)R (M = Cr, R = CH3, Ph, R' = cyclohexyl, cyclopropyl, benzyl) are described: they lead by alkyne insertion followed by a 1,4 hydrogen shift, to imine complexes, which, upon hydrolysis, give the corresponding ketones. When R′CH2Ph, along with the expected imine, a tetraphenylcyclopentadiene resulting from the coupling of two PhCCPh and of a carbene moiety, is formed; its structure has been determined by an X-ray study. In the case of aminopyridine, bidentate carbene complexes (the structure of which was confirmed by an X-ray study of (CO)4CrC (CH3)NHNC5H5) are formed, and these also react with PhCCPh to give for M = Mo, new pyrrolinones through alkyne/CO insertion followed by a 1,2 hydrogen shift.
UR - http://www.scopus.com/inward/record.url?scp=0006892061&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(91)80223-7
DO - 10.1016/0022-328X(91)80223-7
M3 - Artículo
SN - 0022-328X
VL - 418
SP - 377
EP - 393
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 3
ER -