Tetrahedron

Organic reactions with polyphosphoric acid—VIII: Intramolecular acylation with lactones (further extension), hydroxy acids and esters

SB Kulkarni, S Dev

Index: Kulkarni,S.B.; Dev,S. Tetrahedron, 1968 , vol. 24, p. 553 - 560

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Citation Number: 13

Abstract

Intramolecular acylation with lactones in polyphosphoric acid has been extended to γ-and δ- lactones with angular methyls. It is further shown that hydroxy acids can conveniently replace the corresponding lactones in such reactions. The reaction has also been applied to simple esters.

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