Selected Transformations of 6??Cyclopropylidene??5??oxaspiro [2.3] hexan??4??one, a Highly Strained Tricyclic β??Lactone

A Wulferding, JRH Jankowski…

Index: Chemische Berichte, , vol. 127, # 7 p. 1275 - 1282

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Citation Number: 8

Abstract

... n q0 MeCN zn/Cu, 15 O C . 7 + ox + CI ultrasound (35 kHz) 1 2,21- 33% 3,21- 31% 4,5 - 10% , 3 0 2x / p=c=o A 2 + 4 5 ... Chem. Ber. 1994, 127, 1275-1281 Page 3. B ... Reaction time Carbonyl Component rt, CH,CI, Product (% Yield) CI,C$ 9a H @: 9b & 9h 0 10a (37) 3Y3 0 (14) ...