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1999
hydroxylation, hydroboration, phosphorylation, silylation
hydroxylation, hydroboration, phosphorylation, silylation
O 0275
Hydrosilylation of Acetylenes with Catalytic Biscobalthexacarbonyl
48 - 075 Complex and Its Application to Heteroconjugate Addition Methodology.
— Carbohydrate derived acetylenes (I) and (V) undergo efficient
hydrosilylation in the presence of catalytic biscobalthexacarbonyl complexes.
The phenylthioacetylenes (Ic) and (V) react completely regioselectively. The
products [cf. (VI)] are precursors of vinylsulfones useful for heteroconjugate
addition studies. — (ISOBE, MINORU; NISHIZAWA, RENA; NISHIKAWA,
TOSHIO; YOZA, KENJI; Tetrahedron Lett. 40 (1999) 38, 6927-6932; Lab.
Org. Chem., Grad. Sch. Bioagric. Sci., Nagoya Univ., Chikusa, Nagoya 464,
Japan; EN)
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