Ring transformation of 4-acylmethyl-2-chloro-4-hydroxy-2-cyclobutenone to γ-acylmethylenetetronate by thermal rearrangement: New synthetic aspect of squaric acid as a C4-synthon

DOI: 10.1016/S0040-4020(01)85262-5

Source and publish data:

Tetrahedron p. 7783 - 7798 (1994)

Update date:2022-08-05

Topics:

Authors:

Yamamoto, Yoshihiko

Ohno, Masatomi

Eguchi, Shoji

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Article abstract of DOI:10.1016/S0040-4020(01)85262-5

Title cyclobutenones prepared from the TiCl₄-catalyzed addition of a silyl enol ether to squaric acid dichloride and ester chloride were subjected to thermolysis (reflux in an aromatic solvent), and γ-acylmethylenetetronates were obtained stere

Full text of DOI:10.1016/S0040-4020(01)85262-5

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