Abstract
AbstractThe title compounds are prepared either (A) from 1‐(1‐chloroalkyl)benzotriazoles and aldehydes via Wittig reaction or (B) from 1‐[1,1‐bis(trimethylsilyl)alkyl]benzotriazoles by alkylative desilylation by fluoride ion in the presence of a carbonyl compound (in one instance by lithiation of the silyl compound and subsequent reaction with a carbonyl electrophile) via a Peterson olefination. The methods are applicable to both alkyl and aryl ketones and to aldehydes, with method (B) giving the highest yields.
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