Reactions of Azines. 9. Preparation of 4,5-Dihydropyrazolopyridines, 6,7-Dihydropyrazolopyridines, and Pyrazolopyridines

DOI: 10.1021/jo00383a028

Source and publish data:

Journal of Organic Chemistry p. 1319 - 1324 (1987)

Update date:2022-07-29

Topics:

Authors:

Schweizer, Edward E.

Haynes, John E.

Hirwe, S. N.

Rheingold, Arnold A.

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

Article abstract of DOI:10.1021/jo00383a028

The reactions of (3,4-diaza-2,4,6-heptatrienylidene)triphenylphosphoranes 12 with ketenes 15 provide a general route to 4,5-dihydropyrazolo<1,5-a>pyridines 18 via the thermal rearrangements of the allenylazine 16 intermediates.When one of the substituents

Full text of DOI:10.1021/jo00383a028

Products guided by the article

Product name:cis-2,5-diphenyl-4-methyl-4-phenoxy-4,5-dihydropyrazolo<1,5-a>pyridine

Cas No:107299-98-9

R&D Labs maybe for 107299-98-9

Shandong Zhongcheng Barium Salt Co., Ltd

Contact:+86-15725732638

Address:No.29 baoxi road, hi-tech zone, zibo, shandong
Taizhou YOJOY Chemical Co., Ltd.

Contact:13857143241

Address:Yangfu Industrial Park, Xianju, Zhejiang, P. R. China
Fuxin Jintelai Fluorin Chemical Co., Ltd.

Contact:+86-0418-8229599

Address:, 7th Huagong Road, Fluorine industry development zone (Yimatu Town,Fumeng County),Fuxin City, Liaoning Province, China
suzhou chukai pharmateach co,.ltd

Contact:86-512-88812511

Address:Building 3, Wujiang Scientific Innovation Park, 2358 Changan Rd, Wujiang 215200, Jiangsu Province, P. R. China
Shaanxi King Stone Enterprise Company Limited

Contact:86-29-88353805,13609285751

Address:.209 Keji Road Hi-Tech industrial Develpment Zone .Xian China

Relevant to this article

Nucleophilic Addition to Olefins. 16. Unusual Substituent Effects in the Reaction of Amines with β-Nitrostyrenes. Solvent Effect on Intrinsic Rate Constants

Doi:10.1021/ja00275a047
(1986)
Diversity-oriented synthesis towards conceptually new highly modular aminal-pyrrolidine organocatalysts

Doi:10.1002/chem.200801212
(2008)
Substituent effect of 4- and 5-substituted 2-aryl-methylideneindane-1,3- diones on formation of 5-oxo-1H-4,5-dihydroindeno[1,2-b]pyridines

Doi:10.1007/s10593-008-0014-8
(2008)
A new synthesis of 5-alkyl-3-aryl-4-oxazolin-2-ones

Doi:10.1248/cpb.34.1553
(1986)
A highly β-stereoselective catalytic epoxidation of Δ⁵-unsaturated steroids with a novel ruthenium(II) complex under aerobic conditions

Doi:10.1021/jo980829k
(1998)
Doi:10.1016/S0040-4020(01)99210-5
(1963)

Article Doi