Nickel(II) chloride hexahydrate catalyzed reaction of aromatic aldehydes with 2-mercaptoethanol: formation of supramolecular helical assemblage of the product
作者:Rajibul A. Laskar、Naznin A. Begum、Mohammad Hedayetullah Mir、Md. Rumum Rohman、Abu T. Khan
DOI:10.1016/j.tetlet.2013.08.070
日期:2013.10
Various aromatic aldehydes on reaction with 2-mercaptoethanol provided an unanticipated product, bis(2-hydroxyethyl)dithioacetals (3) as the major product along with the expected product 1,3-oxathiolanes (4) in the presence of 0.05 equiv amount of nickel(II) chloride hexahydrate (NiCl2·6H2O) under solvent-free conditions. Products 3c and 3e exhibit an interesting hydrogen-bonded infinite supra-molecular
与2-巯基乙醇反应时,各种芳族醛在0.05当量镍的存在下,提供了未预料到的产物双(2-羟乙基)二硫缩醛(3)和预期产物1,3-氧杂硫杂环戊烷(4)。 (II)六水合氯化物(NiCl 2 ·6H 2 O)在无溶剂的条件下。产物3c和3e表现出令人感兴趣的氢键结合的无限的超分子螺旋结构。