TY - JOUR
T1 - Selective hydrogenation of the CC-triple bond in PhCCPh by tris(triphenylphosphine)cobalt activated NaBH4; deuterium tracing experiments
AU - Steinberger, B.
AU - Michman, M.
AU - Schwarz, H.
AU - Höhne, G.
PY - 1983/3/15
Y1 - 1983/3/15
N2 - Sodium borohydride does not on its own react with diphenylacetylene, but becomes an active hydrogenation agent in the presence of (Ph3P)3CoCl. Unlike systems involving other catalysts, e.g. cobalt halides in ethanol, this is a selective reagent for hydrogenation in which an alkyne is selectively hydrogenated to cis and trans alkenes. The role of NaBH4 in this hydrogenation and isomerization has been studied by deuterium labelling. A brief comparison is made with other active catalysts in this system like (Ph3P)3CoBH4.
AB - Sodium borohydride does not on its own react with diphenylacetylene, but becomes an active hydrogenation agent in the presence of (Ph3P)3CoCl. Unlike systems involving other catalysts, e.g. cobalt halides in ethanol, this is a selective reagent for hydrogenation in which an alkyne is selectively hydrogenated to cis and trans alkenes. The role of NaBH4 in this hydrogenation and isomerization has been studied by deuterium labelling. A brief comparison is made with other active catalysts in this system like (Ph3P)3CoBH4.
UR - http://www.scopus.com/inward/record.url?scp=49049128986&partnerID=8YFLogxK
U2 - 10.1016/S0022-328X(00)98620-0
DO - 10.1016/S0022-328X(00)98620-0
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AN - SCOPUS:49049128986
SN - 0022-328X
VL - 244
SP - 283
EP - 288
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 3
ER -