Larry K. Revelle

The lachrymatory factor of the onion: an NMR study☆

Abstract The lachrymatory factor of the onion is shown by NMR analysis to be a 19 to 1 mixture of (Z)- and (E)-propanethial S-oxide.

Unstable intermediates in the gas-phase. Formation of thioformaldehyde from trithiolan

Pure thioformaldehyde H2CS in the gas phase is most conveniently prepared by heating 1,2,4-trithiolan to 840 K; the corresponding trithiolan 4-oxide yields a mixture of H2CS and H2CSO.

THE PURSUIT AND CAPTURE OF SOME ELUSIVE ORGANOSULFUR MOLECULES

Abstract The use of flash vacuum pyrolysis-mass spectrometry, -microwave spectroscopy, and -photoelectron spectroscopy greatly facilitates the detailed study of such elusive molecules as sulfine (1), methanesulfenic acid (2), and cyclopropanethione valence tautomers (3). A brief description of the techniques used will be followed by a summary of some notable results achieved in our laboratories.