One pot conversion of carbohydrates alcohol into chloride via benzotriazole sulfonate
作者:Chandra S. Azad、Anil K. Saxena
DOI:10.1016/j.tet.2013.01.044
日期:2013.3
A onepot method for chloro-dehydroxylation of carbohydrates alcohol including sterically and electrically hindered ones in excellent yield was developed. The benzotriazole-1-sulfonate proposed to play a crucial role in the reaction medium, which undergoes substitution by chloride ion in the reaction medium to give only desired chloride derivative without the formation of side product. The optimized
Design and reactivity of organic functional groups: imidazolylsulfonate (imidazylate) - au efficient and versatile leaving group
作者:Stephen Hanessian、Jean-Michel Vatèle
DOI:10.1016/s0040-4039(01)81963-8
日期:1981.1
The preparation and reactivity of the novel imidazolylsulfonate group is described.
描述了新型咪唑基磺酸盐基团的制备和反应性。
Design and reactivity of organic functional groups - preparation and nucleophilic displacement reactions of imidazole-1-sulfonates (imidazylates)
作者:Jean-Michel Vatèle、Stephen Hanessian
DOI:10.1016/0040-4020(96)00586-8
日期:1996.8
Imidazole-1-sulfonate, a new type of leaving group by remote activation, allows facile SN2 substitution reactions at sterically crowded centers with various nucleophiles under mild conditions. It could be easily prepared from alcohols with cheap reagents in quantitative yield.
咪唑-1-磺酸盐是一种通过远程激活的新型离去基团,可在温和条件下在空间拥挤的中心与各种亲核试剂进行简便的S N 2取代反应。它可以很容易地由具有廉价试剂的醇以定量产率制备。