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Neue 1‐Methyl‐1λ 4 ,4‐thiazin‐1‐oxide aus N ‐Cyanimidsäureestern
Author(s) -
Ried Walter,
Kuhnt Dietmar
Publication year - 1986
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198619860916
Subject(s) - chemistry , thiazine , bromine , perchloric acid , condensation , oxide , medicinal chemistry , isocyanate , organic chemistry , physics , thermodynamics , polyurethane
New 1‐Methyl‐1λ 4 ,4‐thiazine 1‐Oxides from N ‐Cyanoimidic Esters N ‐cyanoimidates 1a – h react with dimethyloxosulfonium methylide ( 2 ) to give the condensation products 3a – h . Under basic conditions 3a – d form the thiazine derivatives 4a – d . Reactions of 4a, b with perchloric acid, phenyl isocyanate, and bromine are described (→5 – 7).

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