Convenient ‘one-pot’ synthesis of 3,4-substituted tetrahydrothiophenes through tandem Michael–Henry and Michael–Michael reactions
摘要:
In situ generated nitro alkenes underwent tandem Michael-Henry and Michael-Michael sequences leading to the 'one-pot' formation of 3,4-substituted tetrahydrothiophenes using the commercially available 1,4-dithiane-2,5-diol (the dimer of merca-ptoacetaldehyde) or its 4-mercapto-2-butenoates derivatives as suitable bifunctional partners, respectively. (c) 2006 Elsevier Ltd. All rights reserved.
1,4-Dithiane-2,5-diol as an efficient synthon for a straightforward synthesis of functionalized tetrahydrothiophenes via sulfa-Michael/aldol-type reactions with electrophilic alkenes
作者:Nikla Baricordi、Simonetta Benetti、Valerio Bertolasi、Carmela De Risi、Gian P. Pollini、Francesco Zamberlan、Vinicio Zanirato
DOI:10.1016/j.tet.2011.10.064
日期:2012.1
‘One-pot’ tandem reactions of commercially available 1,4-dithiane-2,5-diol (the dimer of mercaptoacetaldehyde) with electrophilic alkenes resulted in the facile formation of substituted tetrahydrothiophene derivatives. Thus, sulfa-Michael/Henry and sulfa-Michael/aldol sequences provided polysubstituted tetrahydrothiophenes using in situ generated nitroalkenes and α,β-unsaturated carbonyl compounds
Convenient ‘one-pot’ synthesis of 3,4-substituted tetrahydrothiophenes through tandem Michael–Henry and Michael–Michael reactions
作者:Achille Barco、Nikla Baricordi、Simonetta Benetti、Carmela De Risi、Gian Piero Pollini
DOI:10.1016/j.tetlet.2006.09.055
日期:2006.11
In situ generated nitro alkenes underwent tandem Michael-Henry and Michael-Michael sequences leading to the 'one-pot' formation of 3,4-substituted tetrahydrothiophenes using the commercially available 1,4-dithiane-2,5-diol (the dimer of merca-ptoacetaldehyde) or its 4-mercapto-2-butenoates derivatives as suitable bifunctional partners, respectively. (c) 2006 Elsevier Ltd. All rights reserved.