SYNTHESIS OF 5-AMINO-4-CYANOPYRAZOLES VIA RING OPENING-RING CLOSURE OF 5-AZIDO-4-IMINOMETHYLPYRAZOLES. ISOLATION OF THE INTERMEDIATE

DOI: 10.1016/0040-4039(91)80835-T

Source and publish data:

Tetrahedron Letters p. 3565 - 3568 (1991)

Update date:2022-08-04

Topics:

Authors:

Dehaen, Wim

Becher, Jan

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1016/0040-4039(91)80835-T

5-Amino-4-cyanopyrazoles are prepared by thermolysis from 5-azido-4-iminomethylpyrazoles in fair yields.The reaction occurs via a ring opening-ring closure mechanism.The intermediate azocompound was isolated.

Full text of DOI:10.1016/0040-4039(91)80835-T

Products guided by the article

Product name:N'-[(E)-2-Cyano-3-phenylazo-but-2-en-(Z)-ylidene]-hydrazinecarboxylic acid ethyl ester

Cas No:135587-43-8

R&D Labs maybe for 135587-43-8

CHEMINN LTD.

website:http://www.cheminn.com/

Contact:86-531-67875205

Address:No.9-2,South of Shanda Road, Jinan ,China
Shanghai Hanshare Industry Co.,Ltd.

Contact:86 21 20960688

Address:RM902-903,Building E, Wanda Plaza,No.26,Zhoukang Road, Pudong District, Shanghai, China
Liao Cheng All Win Chemicals Co.,LTD

Contact:86+0635-2991582

Address:Room 402,Unit 1,No.27 building.Zhong tong shi dai haoyuan,liaocheng city,Shan dong Province.China
Henan Yellow River New Material Technology Co.Ltd.

website:http://www.yellowriverchem.com

Contact:0086-373-7278760

Address:Chengguan Town, Yuanyang County
Hangzhou Share Chemical Co., Ltd(expird)

Contact:+86-57187093700

Address:Hang Xing Road

Relevant to this article

Trimethoxyarene as a highly ionizable tag for reaction analysis by atmospheric pressure photoionization mass spectrometry (APPI/MS): Exploration of heterocyclic synthesis

Doi:10.1002/ejoc.201100919
(2012)
Synthesis of new polyelectrolytes via backbone quaternization of poly(aryloxy- and alkoxyphosphazenes) and their small molecule counterparts

Doi:10.1021/ma202619j
(2012)
Flash vacuum pyrolysis of azolylacroleins and azolylbutadienes

Doi:10.1016/j.tet.2011.11.034
(2012)
Cationic rhodium(I) and iridium(I) α-diimine complexes

Doi:10.1016/j.poly.2011.11.058
(2012)
N@C₆₀-porphyrin: A dyad of two radical centers

Doi:10.1021/ja209763u
(2012)
Divergent oxidative rearrangements in solution and in a zeolite: Distal vs proximal bond cleavage of methylenecyclopropanes

Doi:10.1021/ja045930n
(2005)

Article Doi