Title of article
A new procedure for the synthesis of 4-substituted-2H-1,2,3-benzothiadiazine 1,1-dioxides via directed ortho-lithiation of N1-arylsulfonylhydrazonates
Author/Authors
Kacem، نويسنده , , Yakdhane and Hassine، نويسنده , , Béchir Ben، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2013
Pages
3
From page
4023
To page
4025
Abstract
N1-Arylsulfonylhydrazonates, which are readily available from commercial N1-arylsulfonylhydrazides, undergo directed ortho-lithiation with an excess of lithium diisopropylamide and tetramethylethylenediamine to provide new 2H-1,2,3-benzothiadiazine 1,1-dioxide derivatives in yields ranging from 43% to 85%.
Keywords
Directed ortho-lithiation , 2H-1 , 3-Benzothiadiazine 1 , 1-dioxides , N1-Arylsulfonylhydrazonates , Ortho esters , 2
Journal title
Tetrahedron Letters
Serial Year
2013
Journal title
Tetrahedron Letters
Record number
1885048
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