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2005
Organo-boron compounds
S 0040
Palladium-Catalyzed Addition of Cyanoboranes to Alkynes: Regio- and StereoseSynthesis of α,β-Unsaturated β-Boryl Nitriles. — Only products of cis addi35- 194 lective
tion are formed by the cyanoboration reactions. In the case of unsymmetrical arylated
alkynes, mixtures of regioisomers are isolated. The major products have the cyano
group in α-position to the aryl substituent. The method is used as a key step to squalene
synthetase inhibitor P-3622 (XVI). — (SUGINOME*, M.; YAMAMOTO, A.;
MURAKAMI, M.; Angew. Chem., Int. Ed. 44 (2005) 16, 2380-2382; Dep. Synth.
Chem. Biol Chem., Grad. Sch. Eng., Kyoto Univ., Nishikyo, Kyoto 615, Japan; Eng.)
— Klein
2005
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