One-pot synthesis of vicinal aminoalkanols from sugar aldehydes
作者:Raquel G. Soengas、Artur M.S. Silva
DOI:10.1016/j.tet.2013.02.072
日期:2013.4
A novel synthetic method of carbohydrate derived vicinal aminoalcohols, from sugaraldehydes and bromonitroalkanes, has been developed. It involves an indium-catalyzed one-pot Henry reaction and nitro group reduction, and proceeds with a remarkably high anti-selectivity. The reaction of the intermediate aminoalcohols with alkylating agents furnished the corresponding carbohydrate-based tertiary aminoalcohols
Catalyst‐ and Base‐free One‐pot, Multicomponent, De Novo Assembly of Structurally Diverse Morpholine Glycoconjugates
作者:Ariza Khanam、Mohan Lal、Pintu Kumar Mandal
DOI:10.1002/asia.202200849
日期:2022.12
An unprecedented synthesis of diversely substituted morpholine glycoconjugates enabled by one-pot multicomponent reaction of glycosyl amino alcohol, chloroacetone, acid, and isocyanides under catalyst, metal and base-free condition.The highlights of the present strategy comprise of the formation of only cyclized morpholine scaffolds in place of normal Ugi adduct, in absence of external base.
在无催化剂、无金属和无碱条件下,通过糖基氨基醇、氯丙酮、酸和异氰化物的一锅多组分反应,实现了多种取代吗啉糖缀合物的前所未有的合成。本战略的亮点包括仅形成环化吗啉在没有外部碱基的情况下,支架代替正常的 Ugi 加合物。