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

[1] REACTIONS OF AZINES .11. PREPARATION OF 4H-PYRAZOLO[1,5-C][1,3,5]OXADIAZINES
SCHWEIZER, EE
LEE, KJ
JOURNAL OF ORGANIC CHEMISTRY, 1987, 52 (16) : 3681 - 3683
[2] NOVEL RING-SYSTEMS - PYRAZOLO[1,5-C][1,3,5]BENZOTRIAZOCIN-5(4H)ONE AND PYRAZOLO[1,5-C][1,2,3,5]BENZOTETRAZOCIN-5(4H)ONE DERIVATIVES
PLESCIA, S
AJELLO, E
SPRIO, V
JOURNAL OF HETEROCYCLIC CHEMISTRY, 1975, 12 (01) : 199 - 202
[3] 4H-PYRAZOLO [1,5-A] BENZIMIDAZOLE
KHAN, MA
RIBEIRO, VLT
HETEROCYCLES, 1977, 6 (07) : 979 - 981
[4] Synthesis of some pyrazolo[1,5-c][1,3]benzoxazines and a new 5H-pyrazolo[1,5-c][1,3,2]benzoxazaphosphorine ring system
Svetlik, J
Pronayova, N
Kubista, J
JOURNAL OF HETEROCYCLIC CHEMISTRY, 2005, 42 (06) : 1143 - 1147
[5] Facile Route to Novel Pyrazolo[3,4-d]pyrimidine, Imidazo[1,2-b] pyrazole, Pyrazolo[3,4-d][1,2,3]triazine, Pyrazolo[1,5-c][1,3,5]triazine and Pyrazolo[1,5-c][1,3,5]thiadiazine Derivatives
Bondock, Samir
Tarhoni, Abd El-Gaber
Fadda, Ahmed A.
JOURNAL OF HETEROCYCLIC CHEMISTRY, 2015, 52 (02) : 346 - 351
[6] PREPARATION OF 4H-PYRAZOLO[1,5-ALPHA]INDOLE
KATAYAMA, H
SAKURADA, M
HERATH, WHH
TAKATSU, N
SHEN, JK
CHEMICAL & PHARMACEUTICAL BULLETIN, 1992, 40 (09) : 2267 - 2269
[7] Synthesis and reactions of novel pyrazolo[1,5-c][1,3,]thiazine-7-thiones
Marei, MG
ElGhanam, M
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 1995, 107 (1-4) : 1 - 5
[8] RING TRANSFORMATION OF 6H-CYCLOPROPA [E] PYRAZOLO [1,5-A] PYRIMIDINE .5. SYNTHESIS OF 4H-PYRAZOLO [1,5-A] [1,3] DIAZEPINE
KURIHARA, T
KAWASAKI, E
NASU, K
HETEROCYCLES, 1983, 20 (10) : 1913 - 1916
[9] REACTION OF PYRAZOLO[1,5-C]PYRIMIDINETHIONES WITH HYDRAZINE - SYNTHESIS OF NOVEL SUBSTITUTED PYRAZOLO[1,5-C]-PYRIMIDINE AND PYRAZOLO[1,5-C]TETRAZOLO[1,5-A]PYRIMIDINE DERIVATIVES
MAREI, MG
ELGHANAM, M
JOURNAL OF CHEMICAL RESEARCH-S, 1993, (08): : 292 - 292
[10] Development of new fungicides against Magnaporthe grisea:: Synthesis and biological activity of pyrazolo[3,4-d][1,3]thiazine, pyrazolo[1,5-c][1,3,5]thiadiazine and pyrazolo[3,4-d]pyrimidine derivatives
Vicentini, CB
Forlani, G
Manfrini, M
Romagnoli, C
Mares, D
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2002, 50 (17) : 4839 - 4845

← 1 2 3 4 5 →