The reaction of 1-(methylthio)acetone with different nitriles in the presence of triflic anhydride
led to the one-pot formation of 2-substituted 5-methyl-4-methylthio-1,3-oxazoles in good …

Samples of German wines (Riesling, Scheurebe, Morio-Muskat, Bacchus) were continuously
extracted with Freon 11:dichloromethane; the extracts were concentrated and submitted to …

The one-pot reaction of 1-tetralone with nitriles in the presence of triflic anhydride affords in
good yields 2,4-disubstituted 5,6-dihydrobenzo[h]quinazolines, which oxidation with DDQ …

An analysis for urea in wine was developed in which urea is isolated by ion exchange and
then derivatized with 1-phenyl-1, 2-propanedione 2-oxime. Measurements of the derivative …

A part of the “bouquet of wines” can be caused by the presence of odorous heterocycles
produced by chemical reactions between S‐amino acids and α‐dicarbonyl compounds. Under …

Results Starting Materials and Products. The preparations of (—)-Ih,(—)-Id, and (+)-II-A are
formulated. Acid (—)-III-A of maximum rotation and known configura-tionSab (R) exhibited a …

Optically pure (—)-3-/-butyl-1-methylindene-1-h ((—)-Ih), or its counterpart deuterated in the
1 position ((—)-Id), was subjected to simultaneous base-catalyzed racemization, isotopic …

Equilibrium constants (K) were measured for I<=* II under pure nitrogen. Solutions (0.02 M)
ofl-h and ll-h at 102 ini-butyl alcohol (0.20 Min triethylenediamineor DABCO) gave K= 6.04 …

Results Reactions with Sodium Methoxide in Methanol.—Reaction of cfs-2-chloro-6-phenylcyclohexanone
(1) with 0.05 M NaOMe in MeOH gave a nearly quan-titative conversion into a …

THE discharge of electricity from a surface of large curvature has been studied by Warburg,*
and others. Inasmuch as the nature and form of the discharging surface, when a point, or …