The reaction of vinyl sulfones with iodine azide: Synthesis and thermal reactions of .BETA.-azidovinyl sulfones.
作者:YASUMITSU TAMURA、JUNICHI HARUTA、SAIDMOHAMAD BAYOMI、MOONWOO CHUN、SUNDO KWON、MASAZUMI IKEDA
DOI:10.1248/cpb.26.784
日期:——
p-Toluenesulfonylethene reacted with iodine azide (IN3) to give 2-azido-1-iodo-1-p-toluenesulfonylethane which was treated with 1, 4-diazabicyclo [2. 2. 2] octane (Dabco) to afford trans-2-azido-1-p-toluenesulfonylethene (3a). Similarly benzenesulfonylethene was converted to trans-2-azido-1-benzenesulfonylethene (3b). cis-and trans-2-Benzenesulfonyl-styrenes also reacted with IN3 to give threo-(10) and erythro-2-azido-1-iodo-2-phenyl-1-benzenesulfonylethanes (6), respectively. Treatment of 10 with Dabco gave α-azido-β-benzenesulfonylstyrene (11), whereas 6 yielded β-iodo-β-benzenesulfonylstyrene (7). Heating 3 in ethanol at 50°produced dimeric compounds 13. Refluxing 11 in methanol or irradiation of 11 in a Pyrex tube gave 3-benzenesulfonyl-2-phenyl-1-azirine (14).
对甲苯磺酰乙烯与叠氮碘(IN3)反应生成 2-叠氮-1-碘-1-对甲苯磺酰乙烷,再与 1, 4-二氮杂双环 [2. 2. 2] 辛烷(Dabco)处理,生成反式-2-叠氮-1-对甲苯磺酰乙烯(3a)。顺式和反式-2-苯磺酰基苯乙烯也能与 IN3 反应,分别得到硫代(10)和赤式-2-叠氮-1-碘-2-苯基-1-苯磺酰乙烷(6)。用 Dabco 处理 10 得到 α-叠氮-β-苯磺酰苯乙烯(11),而 6 则得到 β-碘-β-苯磺酰苯乙烯(7)。将 3 在乙醇中加热至 50°,可生成二聚化合物 13。将 11 放入甲醇中回流或在派莱克斯管中照射 11,可得到 3-苯磺酰基-2-苯基-1-氮丙啶(14)。