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|Title:||Side-chain silylation of heterocyclic derivatives. The sythesis of 3-methyl-5-(trimethylsilylmethyl)-1,2,4-oxa-diazole and the atttempted synthesis of 3-methyl-4-nitro-5(trimethylsilymethyl)isoxazole via organolithium reagents||Authors:||Pepino, R.
|Issue Date:||1982||Project:||None||Journal:||JOURNAL OF ORGANOMETALLIC CHEMISTRY||Abstract:||
Silylation of activated heterocyclic systems via treatment with organolithium reagents followed by coupling with Me3SiCl, leads to the expected product in the case of 3,5-dimethyl-1,2,4-oxadiazole, whereas for 3,5-dimethyl-4-nitroiso-xazole the predominant reaction is addition of the lithiating agent, to give after work-up 3,5-dimethyl-5-butyl-4-nitro-4,5-isoxazoline
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