Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (10): 1901.

• Articles • Previous Articles     Next Articles

Preparation and Reaction of α-Bromoketene Dithioacetals

ZHAO Yu-Long, LIU Qun, SUN Ran, XU Xian-Xiu, PAN Ling   

  1. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:2001-06-21 Online:2002-10-24 Published:2002-10-24

Abstract: Bromo ketene dithioacetals (5) were prepared in high yields by reaction of α,α-diacetyl ketene dithioacetals (4) with bromine catalyzed by FeBr3 at room temperature. This new reaction is proposed involving an ipso electrophilic addition-deacetylation mechanism.

Key words: Bromodeacetylation, α-Bromo ketene dithioacetals, α,α-Diacetyl ketene dithioacetals

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