Niobium (V) pentachloride: an efficient catalyst for C-, N-, O-, and S-nucleophilic substitution reactions of benzylic alcohols
JS Yadav, DC Bhunia, KV Krishna, P Srihari
Index: Yadav; Bhunia, Dinesh C.; Vamshi Krishna; Srihari Tetrahedron Letters, 2007 , vol. 48, # 47 p. 8306 - 8310
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Citation Number: 57
Abstract
Carbocations are one of the most important intermediates in C–C bond formation and are easily generated from either alkyl halides, 1 alcohols, 2 or olefins. 3 The coupling of a carbocation with C-, O-, and N-atom centered nucleophiles is a direct approach for the construction of carbon–carbon, carbon–oxygen, and carbon–nitrogen bonds. Alcohols are an attractive source of electrophiles compared to alkyl halides from atom-economical and synthetic points of ...
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