TY - JOUR
T1 - A study of the gas-phase reaction between protonated acetaldehyde and methanol
AU - Dolnikowski, Gregory G.
AU - Heath, Timothy G.
AU - Watson, J. Throck
AU - Scrivens, James
AU - Rolando, Christian H.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - Protonated acetaldehyde is methylated on the oxygen during interaction with methanol in the gas phase. The ionic product of the iomnolecule reaction between methanol and protonated acetaldehyde is identical with C-protonated methylvinyl ether (high-pressure ionization), and with the (M - C2H5)+ fragment ion of sec-butyl methyl ether (following electron ionization), and also with the (M - OCH3)+ fragment ion of acetaldehyde dimethylacetal (following electron ionization). The structures of these ions and the mechanism of their formation were established by isotope-labeling experiments and collision-induced dissociation mass spectra of model compounds obtained with three different types of tandem mass spectrometers (BEQQ, triple-quadrupole, and a penta-quadrupole instrument). Gas phase synthesis of the product ion from [2H3]-methanol or [2H 4]-acetaldehyde provided insight into its mode of formation and collision-induced dissociation. (J Am Soc Mass Spectrom 1990, 1, 481-488)
AB - Protonated acetaldehyde is methylated on the oxygen during interaction with methanol in the gas phase. The ionic product of the iomnolecule reaction between methanol and protonated acetaldehyde is identical with C-protonated methylvinyl ether (high-pressure ionization), and with the (M - C2H5)+ fragment ion of sec-butyl methyl ether (following electron ionization), and also with the (M - OCH3)+ fragment ion of acetaldehyde dimethylacetal (following electron ionization). The structures of these ions and the mechanism of their formation were established by isotope-labeling experiments and collision-induced dissociation mass spectra of model compounds obtained with three different types of tandem mass spectrometers (BEQQ, triple-quadrupole, and a penta-quadrupole instrument). Gas phase synthesis of the product ion from [2H3]-methanol or [2H 4]-acetaldehyde provided insight into its mode of formation and collision-induced dissociation. (J Am Soc Mass Spectrom 1990, 1, 481-488)
UR - http://www.scopus.com/inward/record.url?scp=5244377451&partnerID=8YFLogxK
UR - https://link.springer.com/article/10.1016%2F1044-0305%2891%2980054-B
U2 - 10.1016/1044-0305(90)85031-G
DO - 10.1016/1044-0305(90)85031-G
M3 - Article
AN - SCOPUS:5244377451
SN - 1044-0305
VL - 1
SP - 481
EP - 488
JO - Journal of the American Society for Mass Spectrometry
JF - Journal of the American Society for Mass Spectrometry
IS - 6
ER -