✦ LIBER ✦

Labelling studies of hydrogen rearrangements in the chemical ionization mass spectra of cyclohexanone and its derivatives

✍ Scribed by Vladimir Diakiw; Robert J. Goldsack; James S. Shannon; Michael J. Lacey

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 682 KB
Volume: 13
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210130807

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Rearrangements in the mass spectra of α-

Rearrangements in the mass spectra of α-phenylcinnamic acid and its derivatives

✍ K. P. Madhusudanan; V. S. Murthy; D. Fraisse; M. Becchi 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB

The electron impact ionization and collisional activation mass spectra of a-phenylcinnamic acid and its derivatives have been studied. The loss of a phenylic hydrogen is not an important process in these molecules, unlike the unsubstituted cinnamic acids. However, in o-chloro-a-phenylcinnamic acid a

Hydrogen migrations in mass spectrometry

Hydrogen migrations in mass spectrometry. IV—formation of [C6H7]+ in the chemical ionization mass spectra of alkylbenzenes

✍ Hei-Wun Leung; Alex. G. Harrison 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 450 KB

Using specific deuterium labelling the mechanisms of the olefin elimination reactions leading to formation of [C,H,]+ in the H, and CH, chemical ionization mass spectra of ethylbenzene and n-propylhenzene (and to [C,H,C,HJ+ in the CH, chemical ionization mass spectra) have been investigated. The res

Studies in chemical ionization mass spec

Studies in chemical ionization mass spectrometry 10—CI(CH3NH2) spectra of olefins

✍ H. Budzikiewicz; G. Laufenberg; A. Brauner 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 413 KB

Both alkenes and cydoallrenes react with [CH&H21". The possibilities and Limitations of CI(CHm2) for the identification of structural isomers and for the determination of double bond positions are discussed. The quasi-molecular ions + CH&Hz]" are shown to fragment in a manner observed for amines und

Hydrogen migrations in mass spectrometry

Hydrogen migrations in mass spectrometry. VI—the chemical ionization mass spectra of substituted benzoic acids and benzyl alcohols

✍ Hiroshi Ichikawa; Alex. G. Harrison 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 661 KB

Study of selected ions in the ammonia de

Study of selected ions in the ammonia desorption chemical ionization mass spectra of peracetylated gentiobiose and two isotopically labelled peracetylated gentiobioses

✍ John M. Peltier; Richard W. Smith; David B. Maclean; Walter A. Szarek 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 583 KB

## Abstract The ammonia desorption chemical ionization (NH~3~‐DCI) mass spectra of peracetylated gentiobiose (1) and two isotopically labelled gentiobioses (2 and 3) were examined. Compound 2 is labelled with trideuteroacetyl groups in the non‐reducing moiety and 3 with trideuteroacetyl groups in t

Studies on morphine alkaloids—IX. The ma

Studies on morphine alkaloids—IX. The mass spectra of indolinocodeine and its derivatives

✍ K. Abe; M. Onda; S. Okuda 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 354 KB