A Metal-Catalyzed Tandem 1,4-Benzodiazepine Synthesis Based on Two Hydrogen-Transfer Reactions
作者:Varsha R. Jumde、Elena Cini、Andrea Porcheddu、Maurizio Taddei
DOI:10.1002/ejoc.201403261
日期:2015.2
(TH-BDZ) can be prepared through a one-pot ruthenium-catalyzed reaction encompassing two consecutive borrowing hydrogen cycles. First, benzyl alcohol oxidation, condensation with the amino alcohol, and imine reduction occurs. This is followed by oxidation of the other alcohol functionality and reductive cyclocondensation to give the TH-BDZ derivatives. A single catalyst does the entire job, with two molecules
以 2-氨基苄醇和 1,2-氨基醇为原料,2,3,4,5-四氢-1H-1,4-苯二氮卓类(TH-BDZ)可通过一锅钌催化反应制备,包括连续两次借氢循环。首先,苯甲醇氧化,与氨基醇缩合,亚胺还原发生。随后是其他醇官能团的氧化和还原环缩合反应,得到 TH-BDZ 衍生物。一个催化剂完成整个工作,两个水分子是唯一的废物。许多新的取代 2,3,4,5-四氢-1 H -1,4-苯二氮卓类已被制备以证明该方法的多功能性,可用于制备用于药物发现的特权支架。