✦ LIBER ✦

Synthese von 2,2a,3,4-Tetrahydro-azeto[1,2-d]benz[b]-1,4-oxazin-2,4-dionen

✍ Scribed by Sabrina Schmaldienst; Karl-Hans Ongania

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 449 KB
Volume: 316
Category: Article
ISSN: 0365-6233
DOI: 10.1002/ardp.19833160417

No coin nor oath required. For personal study only.

✦ Synopsis

52a, A-6020 Innsbruck Eingegangen am 29. Marz 1982 Die 1-(2-Hydroxyary1)-4-oxo-azetidin-2-carbonsauren 7c, 7d und 10 cyclisieren mit Dicyclohexylcarbodiimid zu den Titelverbindungen 11, l2 und W. 13 ist auaerdem durch Nitrierung von 12 zuganglich. Die Zwischenstufen 7c, 7d und 10 werden uber die l-Aryl-4-oxo-azetidin-2,2-dicarbonsaureester 4a und 4bdargestellt aus 1 analog Sheehan') oder uber 8 und 9erhalten. Synthesis of 2,2a,3,4-Tetrahydroazeto[l,2-~benzo[b]e-2,4-diones The 1-(2-hydroxyaryl)-4-oxoazetidine-2-carboxylic acids 7e, 7d and 10 react with dicyclohexylcarbodiimide to give the title compounds 11,l2 and 13. Compound 13 can also be obtained by nitration of

📜 SIMILAR VOLUMES

Synthese von 2,2a,3,4-Tetrahydro[1,2-d]b

Synthese von 2,2a,3,4-Tetrahydro[1,2-d]benz[b]-1,4-oxazin-2,4-dionen, 2. Mitt.

✍ Karl-Hans Ongania; Margret Wallnöfer 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 443 KB 👁 1 views

Berichtigung zum Beitrag Synthese von 2,

Berichtigung zum Beitrag Synthese von 2,2a,3,4-Tetrahydro[1,2-d]benz[b]-1,4-oxazin-2,4-dionen, 2. Mitt

✍ Karl-Hans Ongania; Margret Wallnöfer 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 51 KB

cis-2,3,4,4a,5,9b-Hexahydroindeno[1,2-b]

cis-2,3,4,4a,5,9b-Hexahydroindeno[1,2-b]-1,4-oxazine

✍ Kitka Yordanova; Vassilii Shvedov; Damian Dantchev 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 182 KB 👁 1 views

Synthese von 1-Arylsulfonylimino-1,2,5-t

Synthese von 1-Arylsulfonylimino-1,2,5-thiadiazolidin-3,4-dionen

✍ Richard Neidlein; Werner Lehr 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 103 KB 👁 1 views

Electron impact mass spectral studies of

Electron impact mass spectral studies of 2a,4-disubstituted 2-phthalimido-2,2a,3,4-tetrahydro-1H-azeto[2,1-d][1,5]benzothiazepin-1-ones

✍ Jiaxi Xu; Gang Zuo 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 50 KB 👁 1 views

Electron impact mass spectral fragmentat

Electron impact mass spectral fragmentation of 2a,4-disubstituted 2-chloro/2,2-dichloro-2,2a,3,4-tetrahydro-1H-azeto[2,1-d][1,5]benzothiazepin-1-ones

✍ Jiaxi Xu; Peng Jiao; Gang Zuo; Sheng Jin 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 53 KB 👁 1 views

The mass spectrometric behaviour of nine 2a,4-disubstituted 2-chloro/2,2-dichloro-2,2a,3,4-tetrahydro-1Hazeto[2,1-d][1,5]benzothiazepin-1-ones has been studied with the aid of mass-analysed ion kinetic energy spectrometry and accurate mass measurements under electron impact ionization. All compounds