By treatment with stabilized lithium phosphonates in the presence of activated 4Å molecular sieves, unprotected α-hydroxy ketones 1 undergo a convenient Horner-Wadsworth-Emmons olefination to give directly butenolides 3 as exclusive or predominant products.
An easy approach to butenolides by Horner-Wadsworth-Emmons olefination of α-hydroxy ketones
LATTANZI, Alessandra;SCETTRI, Arrigo
1995-01-01
Abstract
By treatment with stabilized lithium phosphonates in the presence of activated 4Å molecular sieves, unprotected α-hydroxy ketones 1 undergo a convenient Horner-Wadsworth-Emmons olefination to give directly butenolides 3 as exclusive or predominant products.File in questo prodotto:
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