Tetrahedron

Marasmic acid—I: Total synthesis of (±)-isomarasmic acid

WJ Greenlee, RB Woodward

Index: Greenlee, W. J.; Woodward, R. B. Tetrahedron, 1980 , vol. 36, p. 3361 - 3366

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Citation Number: 8

Abstract

& relationship of the cyclopropane ring relative to the adjacent hydrogen at the ring fusion. When adduct 11 was placed in contact with a sixfold excess of ethereal d&methane, a 4: 1 mixture of two pyrazolines formed during 14 days. These two produced the identical cyclopropane in high yield when photolyzed in ether solution through a Pyrex filter, demonstrating that thev were derived from exclusive addition of diazomeihane to one side ...