Nickel boride mediated cleavage of 1,3-oxathiolanes: a convenient approach to deprotection and reduction
作者:Jitender M. Khurana、Devanshi Magoo、Kiran Dawra
DOI:10.1007/s00706-015-1608-3
日期:2016.6
cleaved by nickelboride allowing regeneration of corresponding carbonyl compounds. Optimum reaction conditions have also been defined to obtain alcohols exclusively by reduction of oxathiolanes. Reactions are rapid at room temperature and do not require protection from atmosphere. Mild reaction conditions, simple work up, and high yields are some of the major advantages of the procedure. Graphical
The reaction of carbonyl compounds with 2-mercaptoethanol to prepare 1,3-oxathiolanes has been successfully carried out in ionic liquids using ytterbium(III) triflate as a catalyst. Yields of the products are high and the catalyst can be easily recovered and reused in this reaction.
Oxathioacetalization, thioacetalization and transthioacetalization of carbonyl compounds by N-bromosuccinimide: selectivity and scope
作者:Ahmed Kamal、Gagan Chouhan、Kaleem Ahmed
DOI:10.1016/s0040-4039(02)01610-6
日期:2002.9
Efficient oxathioacetalization, thioacetalization and transthioacetalization of carbonylcompounds have been achieved in high yields employing N-bromosuccinimide as a catalyst.
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