R. Alguacil et al., PSEUDOESTERS AND DERIVATES .32. BEHAVIOR AS PHYLLODIENES OF THE 2(5H)-FURANONES SUBSTITUTED IN POSITION 5 BY GROUPS WHICH CONTAIN SULFUR, Afinidad, 50(448), 1993, pp. 353-360
The synthesis of 5-phenyltio-, 5-phenylsulphynil- and 5-phenylsulphoni
l-2(5H)-furanones (2b, 3b, 4b). It is studied the behaviour as phyllod
ienes of the furanones 2,3 and 4 in front of the cyclopentadiene, 2,3-
dimethylbutadiene and 1-metoxybutadiene. Cycloaditions take place in a
stereo- and regioselective way.