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ChemInform Abstract: Remote O, C-Dianion Chemistry of Pyroglutamates: Reaction at C-4 with Electrophiles.

โœ Scribed by Dinesh K. Dikshit; Anjana Maheshwari

Publisher
John Wiley and Sons
Year
2010
Weight
29 KB
Volume
30
Category
Article
ISSN
0931-7597

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โœฆ Synopsis

Remote O, C-Dianion Chemistry of Pyroglutamates: Reaction at C-4 with Electrophiles.

-Lithiation of N-substituted pyroglutamic acids (I) generates O,C-di-lithio enolates which react diastereoselectively with alkyl halides (II) to give exclusively the 4-ฮฑ-substituted products (IV) after esterification with diazomethane. -(DIKSHIT, DINESH K.; MAHESHWARI,

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