Rhodium-Catalyzed Trans-Bis-Silylation Reactions of 2-Ethynyl-3-pentamethyldisilanylpyridines

Autor:	Akinobu Naka, Hisayoshi Kobayashi
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	rhodium-catalyzed reaction trans-bis-silylation silole DFT calculation 2-ethynyl-3-pentamethyldisilanylpyridine cyclic silicon compound Organic chemistry QD241-441
Zdroj:	Molecules, Vol 28, Iss 8, p 3284 (2023)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules28083284
Popis:	Rhodium-catalyzed reactions of 2-ethynyl-3-pentamethyldisilanylpyridine derivatives (1 and 2) are reported. The reactions of compounds 1 and 2 in the presence of catalytic amounts of rhodium complexes at 110 °C gave the corresponding pyridine-fused siloles (3) and (4) through intramolecular trans-bis-silylation cyclization. The reaction of 2-bromo-3-(1,1,2,2,2-pentamethyldisilanyl)pyridine with 3-phenyl-1-propyne in the presence of PdCl2(PPh3)2-CuI catalysts afforded 1:2 bis-silylation adduct 6. DFT calculations were also performed to understand the reaction mechanism for the production of compound 3 from compound 1.
Databáze:	Directory of Open Access Journals
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