𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Electron impact mass spectra of pyrazole- and pyrazoline-1,2-dioxides. A comparative study with related systems

✍ Scribed by Antigoni Kotali; Vassilios P. Papageorgiou; Petros G. Tsoungas

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
189 KB
Volume
21
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Proton magnetic resonance studies of com
Proton magnetic resonance studies of compounds with bridgehead nitrogen atoms: XXXII—The 1H n.m.r. spectra and stereochemistry of 4-aryl-1,6,7,11b-tetrahydro-2H,4H-[1,3]oxazino[4,3-a]isoquinoline, 4-aryl-1,2,6,7,12,12b-hexahydro-4H-[1,3]oxazino[3′,4′:1,2]pyrido[3,4-b]indole and of related systems
✍ Trevor A. Crabb; Jacqueline S. Mitchell 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 284 KB

## Abstract __cis__(4‐H,11b‐H)‐4‐Aryl‐1,6,7,11b‐tetrahydro‐2__H__,4__H__‐[1,3]oxazino [4,3‐__a__]isoquinoline and the related thiazino compound preferentially adopt in solution the O (or S) inside __cis__‐conformation in contrast to __cis__(1‐H,4a‐H)‐1‐arylperhydropyrido[1,2‐__c__][1,3]oxazine whic

In the electron impact mass spectra of N
In the electron impact mass spectra of N,N′-diaryl-1,3-phenylenediamines, recorded under conditions generating the molecular ion as a base peak, the most important step involve a β-aromatic cleavage with H rearrangement, leading to the expulsion of a neutral arylamine; this fact can be used in meta isomer identification since for the corresponding 1,2- and 1,4-isomers the expulsion of an aryl radical is a competitive process
✍ Nicolae Palibroda; Castelia Cristea; Ioan A. Silberg; Ileana Chirtoc 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 20 KB 👁 3 views