𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Reaction of protonated acetaldehyde with methanol in the gas phase

✍ Scribed by S. König; P. Kofel; H. Reinhard; M. Sägesser; U. P. Schlunegger

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
379 KB
Volume
28
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

The ion-molecule reactions between protonated acetaldehyde and methanol were explored on a quadrupole, quistor, quadrupole tandem mass spectrometer. In addition to proton transfer to methanol and subsequent methanol ionmolecule chemistry, the protonated acetaldehyde-methanol adduct and methylated acetaldehyde could be detected. Experiments with labelled counterparts showed that the formation of methylated acetaldehyde corresponds to substitution of the oxygen-bound hydrogen of protonated acetaldehyde by the methyl group of methanol. The reaction rates involved and H-D exchange rates were determined.

📜 SIMILAR VOLUMES

Competitive reactions of protonated poly
Competitive reactions of protonated polyamines in the gas phase
✍ Robert J. Weinkam 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 389 KB 👁 2 views

The chemical ionization mass spectra of polyamines have been used to determine the importance of competing intramolecular reactions of protonated molecules in the gas phase. Multifunctional molecules react if possible in the order of intramolecular displacement-cyclization reactions, stabilization o

Reactions between protonated and neutral
Reactions between protonated and neutral methanol in the gas-phase: an ab initio molecular orbital study
✍ Guy Bouchoux; Nadège Choret 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB 👁 2 views

Ab initio molecular orbital calculations at the MP2/6-31G\*//MP2/6-31G\* + ZPE level have been performed in order to explore the reaction between CH 3 OH 2 + and CH 3 OH. The detailed mechanism of proton transfer, CH 3 OH 2 + + CH 3 OH ® CH 3 OH + CH 3 OH 2 + , and of cationic nucleophilic substitut

Isomerization of the protonated acetone
Isomerization of the protonated acetone dimer in the gas phase
✍ K. Norrman; T. I. Sølling; T. B. McMahon 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 275 KB 👁 1 views

## Abstract Mass spectrometry‐based methods have been employed in order to study the reactions of non‐ (__h__~6~/__h__~6~), half (__d__~6~/__h__~6~), and fully (__d__~6~/__d__~6~) deuterium labeled protonated dimers of acetone in the gas phase. Neither kinetic nor thermodynamic isotope effects were