A NEW PROCEDURE FOR THE SYNTHESIS OF 4H-PYRAZOLO[1,5-C][1,3,5]THIADIAZINE-4-THIONES

被引：10

作者：

VICENTINI, CB ^{[1
]}

VERONESE, AC ^{[1
]}

GUARNERI, M ^{[1
]}

MANFRINI, M ^{[1
]}

GIORI, P ^{[1
]}

GUCCIONE, S ^{[1
]}

机构：

[1] UNIV CATANIA,IST CHIM FARM & TOSSICOL,I-95125 CATANIA,ITALY

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1994年 / 31卷 / 06期

关键词：

D O I：

10.1002/jhet.5570310632

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Thiation of N-(1-tert-butyl-3-methylpyrazol-5-yl)carboxamides 2 with the Lawesson reagent afforded the corresponding thiocarboxiamides 3. Heating of 3 in formic acid gave the N-dealkylated thiocarboxamides 4 which were cyclized into 4H-pyrazolo[1,5-c][1,3,5]thiadiazine-4-thiones 5 by treatment with thiophosgene.

引用

页码：1477 / 1480

页数：4

共 50 条

[31] SYNTHESIS OF 1,5-DIHYDRO-5-(4-METHOXYPHENYL)-4H-PYRAZOLO[3,4-D]PYRIMIDIN-4-ONES AND THEIR RIBOSIDES AND MANNICH-BASES
FINLANDER, P
PEDERSEN, EB
ARCHIV DER PHARMAZIE, 1985, 318 (05) : 452 - 459
[32] REACTIONS WITH HETEROCYCLIC AMIDINES .3. SYNTHESIS OF SOME NEW PYRAZOLO[1,5-A]PYRIMIDINE AND PYRAZOLO[1,5-C]-AS-TRIAZINE DERIVATIVES
ELAGAMEY, AGA
ELTAWEEL, FMA
AMER, FA
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1986, 51 (10) : 2193 - 2198
[33] A new synthesis of 2,8-disubstituted pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidines
Dolzhenko, Anton V.
Pastorin, Giorgia
Dolzhenko, Anna V.
Chui, Wai Keung
TETRAHEDRON LETTERS, 2009, 50 (40) : 5617 - 5621
[34] 3-SUBSTITUTED 4H-PYRAZOLO[5,1-C] [1,4]BENZOXAZINES BY INTRAMOLECULAR NITRILE IMINE ADDITION
JANIETZ, D
KHOUDARY, K
RUDORF, WD
JOURNAL FUR PRAKTISCHE CHEMIE-PRACTICAL APPLICATIONS AND APPLIED CHEMISTRY, 1987, 329 (02): : 343 - 348
[35] Regioselective Synthesis of Some New Pyrazolo[1,5-a]pyrimidines, Pyrazolo[1,5-a]quinazoline and Pyrimido[4,5:3,4]pyrazolo[1,5-a] pyrimidines Containing Thiazole Moiety
Bondock, Samir
Tarhoni, Abd El-Gaber
Fadda, Ahmed A.
JOURNAL OF HETEROCYCLIC CHEMISTRY, 2015, 52 (06) : 1792 - 1799
[36] A new strategy for the synthesis of pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidines and pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidines
Shawali, Ahmad Sami
Hassaneen, Hamdi M.
Shurrab, Nabil Kh.
TETRAHEDRON, 2008, 64 (45) : 10339 - 10343
[37] Convenient Synthesis of [1,2,4]Triazolo[4,3-a][1,3,5]triazin-5-amines, [1,2,4]Triazolo[4,3-c][1,3,5]thiadiazine-5-thiones, and [1,2,4]Triazolo[4,3-c][1,3,5]thiadiazin-5-imines from N-(4H-1,2,4-Triazol-3-yl) Carboximidates
Hajri, A.
Marzouki, L.
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY, 2019, 55 (10) : 1580 - 1583
[38] Convenient Synthesis of [1,2,4]Triazolo[4,3-a][1,3,5]triazin-5-amines, [1,2,4]Triazolo[4,3-c][1,3,5]thiadiazine-5-thiones, and [1,2,4]Triazolo[4,3-c][1,3,5]thiadiazin-5-imines from N-(4H-1,2,4-Triazol-3-yl) Carboximidates
A. Hajri
L. Marzouki
Russian Journal of Organic Chemistry, 2019, 55 : 1580 - 1583
[39] Synthesis of new pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines and related heterocycles
Baraldi, PG
El-Kashef, H
Farghaly, AR
Vanelle, P
Fruttarolo, F
TETRAHEDRON, 2004, 60 (23) : 5093 - 5104
[40] DIAZOPYRROLINE AS SYNTHETIC INTERMEDIATE - SYNTHESIS OF PYRAZOLO[1,5-C]PYRIMIDINES
MADHAV, R
ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL, 1976, 8 (04) : 200 - 201

← 1 2 3 4 5 →