Reactions of Azines. 8. Rearrangement of 1-Oxo-3,4,8-triaza-2,4,6,7-octatetraenes to 2,3-Dihydro-1H-imidazopyrazol-2-ones and 4,9-Dihydropyrazoloquinazolines

DOI: 10.1021/jo00185a026

Source and publish data:

Journal of Organic Chemistry p. 1964 - 1969 (1984)

Update date:2022-07-29

Topics:

Authors:

Schweizer, Edward E.

Lee, Kee-Jung

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

Article abstract of DOI:10.1021/jo00185a026

Reactions of phosphoranes 1 with isocyanates 2 have given excellent yields of 4,9-dihydropyrazolo<5,1-b>quinazolines 10 and 2,3-dihydro-1H-imidazo<1,2-b>pyrazol-2-ones 13 presumably via the intermediate 1-oxo-3,4,8-triaza-2,4,6,7-octatetraenes 3.The ratio

Full text of DOI:10.1021/jo00185a026

Products guided by the article

Product name:(3-Ethyl-2-methyl-9-phenyl-4,9-dihydro-pyrazolo[5,1-b]quinazolin-9-yl)-phenyl-methanone

Cas No:89726-12-5

R&D Labs maybe for 89726-12-5

HANGZHOU EVC CHEMICAL CO.,LTD.(expird)

Contact:+86-571-88296056

Address:Room#3001,Zhejiang Chemical Market,No.10,Road Shenban,Hangzhou,Zhejiang,China
Hunan Shineway Enterprise Co., Ltd.

Contact:+86-731-86303875

Address:118, Huanghua International Airport Road, Huanghua Town, Changsha, Hunan 410137, China
RongCheng Tianyu Technology Co.,Ltd.

Contact:86-631-7519595

Address:220Ping Donghai Road RongChengCity,ShangDong Province China
Shanghai Forever Synthesis Co.,Ltd.

Contact:021-61124658

Address:Zhoukang Road,Pudong New District,Shanghai,China
Aminodiscovery Co.,Ltd.

Contact:+86-535-8888888

Address:No.161 Haishi Rd.

Relevant to this article

Formylation Products of Thioamides; VII. Synthesis of New N-(3-Aminothioacryloyl)-formamidines and N,N'-Bisthioureas by Bisiminoformylation of Thioacetamides and Thiourea with Formamide Acetals

Doi:10.1055/s-1984-30729
(1984)
Magnesium tetrapyrazinoporphyrazines: Tuning of the pK_a of red-fluorescent pH indicators

Doi:10.1039/c9dt00381a
(2019)
4-NITROBENZENEDIAZONIUM SALT AND CYCLOPENTADIENE

Doi:10.1016/S0040-4039(01)91148-7
(1984)
Furan-2-ylmethylene thiazolidinediones as novel, potent, and selective inhibitors of phosphoinositide 3-kinase γ

Doi:10.1021/jm0601598
(2006)
Asymmetric synthesis of α-mercapto-β-amino acid derivatives: application to the synthesis of polysubstituted thiomorpholines

Doi:10.1016/j.tetasy.2006.04.004
(2006)
DIORGANOPHOSPHINOALKYL-DIMETHYLZINNCHLORIDE: SYNTHESE, STRUCTUR UND REAKTIONSVERHALTEN

Doi:10.1016/S0022-328X(00)99156-3
(1984)

Article Doi