An unexpected reaction between 6,7-dimethoxy-2H-1,3-benzothiazine and dimethyl acetylenedicarboxylate

被引：5

作者：

Fodor, L ^{[1
]}

Bernáth, G

Sohár, P

Gröschl, D

Meier, H

机构：

[1] Hungarian Acad Sci, Res Grp Heterocycl Chem, H-6720 Szeged, Hungary

[2] Univ Szeged, Inst Pharmaceut Chem, H-6720 Szeged, Hungary

[3] Eotvos Lorand Univ, Res Grp Struct Chem & Spect, Hungarian Acad Sci, Dept Gen & Inorgan Chem, H-1518 Budapest, Hungary

[4] Johannes Gutenberg Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany

来源：

MONATSHEFTE FUR CHEMIE | 2006年 / 137卷 / 02期

关键词：

S; N-heterocycles; dimethyl acetylenedicarboxylate cycloadditions; 5,13-dithiaxylopinine; benzothiopyrane; reaction mechanism;

D O I：

10.1007/s00706-005-0408-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

6,7-Dimethoxy-2H-1,3-benzothiazine reacted with dimethyl acetylenedicarboxylate in aqueous methanol to give heterocycles with unexpected structures. A mechanism is proposed for the reaction.

引用

页码：231 / 234

页数：4

共 9 条

[1] FODOR L, 1982, HETEROCYCLES, V19, P488
[2] GROSCHL D, 1995, LIEBIGS ANN, P441
[3] CYCLOADDITION REACTIONS OF BENZOTHIETE WITH AZOMETHINES
JACOB, D
MEIER, H
[J]. JOURNAL OF HETEROCYCLIC CHEMISTRY, 1986, 23 (04) : 1085 - 1086
[4] MEIER H, 1993, LIEBIGS ANN CHEM, P313
[5] MEIER H, 1996, J PRAKT CHEM, V131, P345
[6] Meier H., 1994, SULFUR REPORTS, V16, P23
[7] SOHAR P, 1989, MAGN RESON CHEM, V27, P260
[8] SZABO J, 1976, ACTA CHIM HUNG, V88, P149
[9] SZABO J, 1994, ACH-MODELS CHEM, V131, P345

← 1 →