Yoshiyasu Kamiyama

Chemistry of organosilicon compounds: CLXXXVIII. Reaction of organodisilanes with dienes catalyzed by transition metal complexes. Preparation of 1,8-bis(trimethylsilyl)octa-2,6-diene and its use in the synthesis of dl-muscone☆☆☆

Abstract Organodisilanes, Me 3- n X n SiSiX n Me 3- n (X = Cl and MeO, n = 0, 1, 2) undergo efficient 1:2 addition reactions with butadiene and isoprene in the presence of a catalytic amount of a suitable palladium complex. One of the products, the title compound, was used as a starting material for a short synthesis of dl -muscone.

Chemistry of organosilicon compounds XCVI. The SiSi/SiSi Metathesis reaction catalyzed by palladium complexes☆

Abstract 1,1,2,2-Tetramethyl-1,2-disilacyclopentane undergoes the SiSi/SiSi metathesis reaction with vinyl- or ethynyl-substituted disilanes in the presence of a palladium complex.

Chemistry of organosilicon compounds : CXLII. 29Si nmr spectra of some iron and ruthenium complexes containing silicon. Reassignment of the structures of the complexes obtained by the reaction vinyldisilanes and nonacarbonyldiiron

Abstract 29 Si NMR studies on several iron and ruthenium carbonyl complexes containing silicon revealed that the complexes obtained from vinyldisilanes and nonacarbonyldiiron previously reported to be (η 3 -1-silapropenyl)tricarbon: iron compounds really are (η 2 -vinyldisilane)tetracarbonyliron complexes.

Photochemical reactions of a silacyclopropene with nitriles leading to new organosilicon ring systems

Irradiation of 1,1-dimethyl-2-phenyl-3-trimethylsilylsilacyclopropene (1) in the presence of RCN (R = Ph, Me, and CH2CHCH2) resulted in the formation of aza-2,8-disilabicyclo[3.2.1]octa-3,6-diene derivatives (2), whereas the photochemical reaction of (1) with acrylonitrile afforded, in addition to (2), another new ring system, 1-aza-2,8-disilabicyclo[3.3.0]octa-3,6-diene (3).