Tetrahedron p. 7783 - 7798 (1994)
Update date:2022-08-05
Topics:
Yamamoto, Yoshihiko
Ohno, Masatomi
Eguchi, Shoji
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
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