Synthesis and reactivity of 4??substituted??2, 3??dihydrobenzo??1, 4??thiazines

S Florio, JL Leng, CJM Stirling

Index: Florio, Saverio; Leng, John L.; Stirling, Charles J. M. Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 237 - 240

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Citation Number: 12

Abstract

Abstract A series of derivatives of 4H-2, 3-dihydrobenzo-1, 4-thiazine has been prepared. 4- Acetyl-2, 3-dihydrobenzo-1, 4-thiazine undergoes self-condensation by n-butylmagnesium bromide affording the corresponding 4-aceto-acetyl-2, 3-dihydrobenzo-1, 4-thiazine, which, is converted to 5H-1, 4-thiazino [2, 3, 4-if] quinolin-5-one. Halogena-tion of the acetyl derivative takes place at the position 2 of the heterocyclic ring and oxidation leads to 1- ...

6397-16-6

1-(2,3-Dihydro-...

~78%

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

79602-52-1

1-(10,10-dioxo-...

$1-(10,10-dioxo-10$l^{6}-thia-7-azabicyclo[4.4.0]deca-1,3,5-trien-7-yl)ethanone Structure$

~99%