Synthesis

Synthesis of 2, 3-Dihydro-1, 4-dithiins and 2-Alkylidene-1, 4-dithianes by 1, 2-Sulfur Migration in 2-(1-Hydroxyalkyl)-1, 3-dithiolanes

CAM Afonso, MT Barros, LS Godinho, CD Maycock

Index: Afonso; Barros; Godinho; Maycock Synthesis, 1991 , # 7 p. 575 - 580

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Citation Number: 17

Abstract

Product Yield Ratio 3+ 4 (V0) 3/4 Sub-Ratio 2/Temp. Time strate Et2O~ BF3 (C)(h) la 1.0 25 12 3a 92-111 0.7 25 2 3h 57-lc 1.0 0 2 3c 38-1d 0.8 0 2 3d 97-le 0.8 25 12 3e 90-If 0.8 25 2 3r+ 4r 95 1.5 lg 0.8 25 2 3g+ 4g 96 1.3 lb 0.8 0 2 an+ 411 90 0.59 li 1.0 0 2 3i+ 4i 56 0.18 Si 1.0 0 2 41 74 0 5j 1.0 0 1 41 75 0