Cho, YS Yoo, BR Ahn, S Jung, IN 2024-01-21T15:36:31Z 2024-01-21T15:36:31Z 2021-09-05 1999-04-20 0253-2964 https://pubs.kist.re.kr/handle/201004/142239 The Grignard coupling reaction of bis(chloromethyl)diorganosilanes [(ClCH(2))(2)SiR(1)R(2): R(1) = R(2) = Me, 1a; R(1) = Me, R(2) = Ph, 1b; R(1) = R(2) = Ph, 1c] with diorganodichlorosilanes [(Cl(2)SiR(3)R(4): R(3) = R(4) = Me, 2a; R(3) = Me, R(4) = Ph, 2b; R(3) = R(4) = Ph, 2c] at THE reflux temperature gave the intermolecular C-SI coupling product of 1,1,3,3-tetraorgano-1,3-disilacyclobutanes 3a-f in poor to moderate yields ranging from 7% to 50% along with polydiorganosilapropanes. The cyclization reaction of 1a-c with methyl-substituted dichlorosilanes 2a, b gave 1,3-disilacyclobutanes 3a-c, e, d in moderate yields (42-50%), while the same reaction with dichlorodiphenylsilane (2c) to 1,3-disilacyclobutanes 3d, f resulted in low yield (7-18%) probably due to the steric hindrance of two-phenyl groups on the silicon of 2c. English KOREAN CHEMICAL SOC Grignard coupling reaction of bis(chloromethyl)diorganosilanes with dichloro(diorgano)silanes: Syntheses of 1,3-disilacyclobutanes Article 1 BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.20, no.4, pp.427 - 430 BULLETIN OF THE KOREAN CHEMICAL SOCIETY 20 4 427 430 scie scopus 000080757500012 2-s2.0-0345034563 Chemistry, Multidisciplinary Chemistry Article Bis(chloromethyl)diorganosilanes