Yoo, BR Kim, JH Cho, BG Jung, IN 2024-01-21T12:02:19Z 2024-01-21T12:02:19Z 2021-09-05 2001-08-10 0022-328X https://pubs.kist.re.kr/handle/201004/140243 (Polychloromethyl)silanes (Cl3-mMemSiCH3-nCln:m = 0-3; n = 2, 3) reacted with excess benzene in the presence of aluminum chloride to give (polyphenylmethyl)silanes. Such reactions occurred at the temperatures ranging from room temperature (m = 2, 3; n = 2) to 80 degreesC (m = 0, 1; n = 2, 3), indicating that the reactivity increases with increasing the number (m) of electron-donating methyl-group(s) at the silicon. In particular, (dichloromethyl)silanes with two or three methyl groups at the silicon (m = 2 or 3; n = 2) underwent the alkylation and the decomposition of their products at room temperature. The reaction with (dichloromethyl)trimethylsilane occurred immediately at room temperature to give no (diphenylmethyl)trimethylsilane, but diphenylmethane and trimethylchlorosilane via the decomposition of alkylation product. (Trichloromethyl) si lanes (m = 0, 1, n = 3) reacted with excess benzene to give (triphenylmethyl)si lanes as major products and the unusual (diphenylmethyl)silanes as minor. It was found that unusual (diphenylmethyl) si lanes were formed by the decomposition of (triphenylmethyl)silanes under the reaction condition. In the alkylation to benzene, the reactivity of (polychloromethyl)silanes (Cl3-mMemSiCH3-nCln:m = 0 - 3; n = 2, 3) decreases in the following order: m = 3 > 2 > 1 > 0; n = 3 > 2. (C) 2001 Elsevier Science B.V. All rights reserved. English ELSEVIER SCIENCE SA ALLYLCHLOROSILANES HALIDES METHYL Friedel-Crafts alkylation of benzene with (polychloromethyl)silanes Article 10.1016/S0022-328X(01)00827-0 1 JOURNAL OF ORGANOMETALLIC CHEMISTRY, v.631, no.1-2, pp.36 - 40 JOURNAL OF ORGANOMETALLIC CHEMISTRY 631 1-2 36 40 scie scopus 000170950900006 2-s2.0-0038362888 Chemistry, Inorganic & Nuclear Chemistry, Organic Chemistry Article ALLYLCHLOROSILANES HALIDES METHYL alkylation (polychloromethyl)silanes (dichloromethyl)silanes (trichloromethyl)silanes (diphenylmethyl)silanes (triphenylmethyl)silanes aluminum chloride