Tetrahedron p. 8465 - 8470 (1992)
Update date:2022-08-04
Topics:
Asensio, Gregorio
Perez-Prieto, Julia
Rams, M. Carmen
Miranda, Miguel A.
Sabater, M. Jose
Carboxylic acid 1 and its derivatives 2, 3 treated with triflic acid below -20 deg C afford the dications 1H2(2+) - 3H2(2+).Cyclodehydration above 20 deg C (or in the gas-phase, CIMS of 3) leads to the diprotonated ketone 4H2(2+).Key Words: Chemical ioniz
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