4 imidazoline-2-thione

Imidazoline, 2-phenyl-pKa, 5, 425 <69BSF4075, 73JCS(P2)1371) 4-Imidazoline-2-thione... [Pg.29]

TOTWUU l,l -Methylenebis(S-iodine-3-methyl-4-imidazoline-2-thione) 2.683 2.897 175.71... [Pg.89]

X3 13C1N203S l-(p-Chlorophenyl)-4-o -D-erythrofuranosyl-4-imidazoline-2- thione CPEFIM 32 367... [Pg.391]

Unsaturated five membered 2-chalcogenons with two heteroatoms at 1,3-positions (6) will show versatile reactivities with acceptors, since E in 6 must be very electron rich with the formation of a stable cyclic 671 electron system (6A).27,28 A saturated ring system 7 is expected to show similar trend due to the stabilization by the allylic X-C-Y framework with 471 electrons (7A). Arduengo reported the TBP formation of 1,3-dimethyl-4-imidazoline-2-thione (8), a typical example of 6 (X = Y = NMe and E = S), with bromine (8 Br2), together with the reactions.36... [Pg.648]

Formation of imidazoles from thiourea derivatives has been limited largely to the 2-alkylthio or 2-aralkylthio-substituted rings (unsubstituted 2-mercaptoimidazoles will be classified as 4-imidazoline-2-thiones in this review). [Pg.102]

The two general methods for preparation of 4-imidazoline-2-thiones are the reaction of acyloins with thioureas and the acid hydrolysis of alkyl- or arylthiureidoacetals. The above reactions have been summarized in a review by Hofmann. Aren and Bite recently reported that the 2-phenyl-2-thiureido-l,3-indanediones (17) undergo rearrangement in strong acid to produce in high yield a series of 4-imidazoline-2-thiones (18). [Pg.104]

Synonyms 1-Methylimidazole-2-thiol 1-Methyl-4-imidazoline-2-thione... [Pg.486]

C8H12N2O3S 4-)J-D-Erythrofuranosyl-l-methyl-4-imidazoline-2-thione MEFIZTIO 34 353... [Pg.385]

Isothiocyanates may be converted into derivatives of thiourea or 4-imidazoline-2-thione as shown in reactions 42 and 43, respectively... [Pg.224]

A soln. of 3,4-diphenyl-4-oxazoline-2-thione in benzylamine heated 8-9 hrs. at 100° -> l-benzyl-5-hydroxy-3,4-diphenylimidazolidine-2-thione (Y 70%) dissolved in ethanol, treated with coned. H2SO4, and heated to reflux l-benzyl-3,4-di-phenyl-4-imidazoline-2-thione (Y 92%). F. e. s. S. Carboni, E. Grothe, and M. F. Saettone, J. Pharm. Sci. 57, 1063 (1968). [Pg.380]

The adduct mbit 2I2 (mbit = l,l - i5(3-methyl-4-imidazoline-2-thione)meth-ane. Figure 10) was found to oxidise tin(O) metal powder in Et20 at room temperature to afford an air-stable Sn(IV) dicationic complex of formula... [Pg.492]

Bigoli, R, Deplano, R, Mercuri, M.L. et al. (1996) Evaluation of thermodynamic parameters for highly correlated chemical systems a spectrophotometric study of the 1 1 and 2 1 equilibria between E and l,l -methylenebis(3-methyl-4-imidazoline-2-thione) (mbit) and Ll -ethylenebis(3-methyl-4-imidazoline-2-thione) (ebit). Crystal and molecular structures of mbit-2l2 and ebit-2l2. J. Chem. Soc., Dalton Trans., 3583-3589. [Pg.317]

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