153254-17-2Relevant academic research and scientific papers
Asymmetric allylation polymerization of bis(allylsilane) and dialdehyde containing arylsilane structure
Kumagai, Toshihiro,Itsuno, Shinichi
, p. 5323 - 5325 (2002)
Arylsilane monomers, soluble at low temperature and used for the asymmetric allylation polymerization were prepared. Optically active polymers containing aryl carbon-silicon linkages in the main chain were obtained. Results showed that the chiral polymers
Asymmetric polymer synthesis by repetitive Sakurai-Hosomi allylation reaction of compounds possessing both formyl and allylsilane functions
Itsuno, Shinichi,Kumagai, Toshihiro
, p. 3185 - 3196 (2007/10/03)
Trialkylallylsilanes generally react with aldehydes in the presence of a Lewis acid to the corresponding homoallylic alcohols. Chiral Lewis acids promote the same reaction to yield the enantiomerically-enriched homoallylalcohols. We have prepared four compounds (7-10) that possess both formyl and allylsilane functions. Lewis acids initiated self-polyaddition reactions of these compounds by means of repetitive allylation. The use of chiral Lewis acids resulted in the formation of optically active polymers that possess exo-methylene and secondary OH functions in their main chain. The optical purity of these chiral polymers was estimated based on the results of model asymmetric reactions between benzaldehyde and β-substituted allylsilanes and by controlled degradation.
Catalytic Asymmetric Aldol-Type Reactions Using a Chiral (Acyloxy)borane Complex
Ishihara, Kazuaki,Maruyama, Tohru,Mouri, Makoto,Gao, Qingzhi,Furuta,Kyoji,Yamamoto, Hisashi
, p. 3483 - 3491 (2007/10/02)
In the presence of 20 molpercent of a chiral (acyloxy)borane (CAB) complex prepared from BH3*THF and a chiral mono-O-acylated tartaric acid, achiral silyl enol ethers or ketene silyl acetals react with achiral aldehydes to afford the corresponding aldol-t
