Controlled potential oxidation of a variety of substituted o-to-luenesulfonamides at a Pt anode in MeCN using a divided cell provides 3-methyl -4,5-dihydro-1,2,4-benzothiadiazepine-1,1-dioxides selectively and in generally good yields. The scope and limitations of this one-step heterocyclization sequence are also discussed.
ELECTROCHEMICAL HETEROCYCLIZATION OF ORTHO-TOLUENESULFONAMIDES TO 3-ALKYL-4,5-DIHYDRO-1,2,4-BENZOTHIADIAZEPINE-1,1-DIOXIDES / G. PALMISANO, B. DANIELI, G. LESMA, G. FIORI. - In: TETRAHEDRON. - ISSN 0040-4020. - 44:5(1988), pp. 1545-1552. [10.1016/S0040-4020(01)85933-0]
ELECTROCHEMICAL HETEROCYCLIZATION OF ORTHO-TOLUENESULFONAMIDES TO 3-ALKYL-4,5-DIHYDRO-1,2,4-BENZOTHIADIAZEPINE-1,1-DIOXIDES
B. DanieliSecondo
;G. LesmaPenultimo
;G. FioriUltimo
1988
Abstract
Controlled potential oxidation of a variety of substituted o-to-luenesulfonamides at a Pt anode in MeCN using a divided cell provides 3-methyl -4,5-dihydro-1,2,4-benzothiadiazepine-1,1-dioxides selectively and in generally good yields. The scope and limitations of this one-step heterocyclization sequence are also discussed.
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