Nucleophilic trifluoromethylation of conjugate acceptors via phenyl trifluoromethyl sulfone
摘要:
A mild procedure for the conjugate addition of the trifluoromethyl anion to activated Michael acceptors such as arylidenemalononitriles (15 examples) and arylidene Meldrum's acids (9 examples) using phenyl trifluoromethyl sulfone through a reductive magnesium metal mediated procedure is described. The new methodology is used to prepare befloxatone, a reversible and selective monoamine oxidase A inhibitor. (C) 2013 Elsevier Ltd. All rights reserved.
Nucleophilic trifluoromethylation of arylidene Meldrum’s acids
作者:Artem A. Zemtsov、Vitalij V. Levin、Alexander D. Dilman、Marina I. Struchkova、Pavel A. Belyakov、Vladimir A. Tartakovsky
DOI:10.1016/j.tetlet.2009.03.188
日期:2009.6
A method for the trifluoromethylation of arylidene Meldrum's acids using Me3SiCF3 followed by transformation of the initial products to CF3-substituted esters and alcohols is described. The sequence of reactions is performed without isolation of intermediate compounds furnishing the final products in good overall yields. (C) 2009 Elsevier Ltd. All rights reserved.
Tetrahedron Lett. 2013, 54, 6129-6132
作者:
DOI:——
日期:——
US6893861B1
申请人:——
公开号:US6893861B1
公开(公告)日:2005-05-17
Nucleophilic trifluoromethylation of conjugate acceptors via phenyl trifluoromethyl sulfone
作者:Kaumba Sakavuyi、Kimberly S. Petersen
DOI:10.1016/j.tetlet.2013.08.132
日期:2013.11
A mild procedure for the conjugate addition of the trifluoromethyl anion to activated Michael acceptors such as arylidenemalononitriles (15 examples) and arylidene Meldrum's acids (9 examples) using phenyl trifluoromethyl sulfone through a reductive magnesium metal mediated procedure is described. The new methodology is used to prepare befloxatone, a reversible and selective monoamine oxidase A inhibitor. (C) 2013 Elsevier Ltd. All rights reserved.