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Toluenesulfonic hydrazide

The product hydrazide may be sulfonated and decomposed by heating with a base in ethylene glycol to yield benzaldehyde, CeHsCHO. Many aromatic aldehydes may be produced by similar routes. The hydrazone derivative of toluenesulfonic acid reacts with an aldehyde or a ketone in the presence of a base catalyst, such as sodium ethoxide, to yield the corresponding olefin (Bamford-Stevens reaction) ... [Pg.347]

The third approach was based on cyclodehydratation of 6-aroylhydrazido-purine derivative 278 under catalysis by p-toluenesulfonic acid giving rise to tricyclic 279. The necessary intermediate 278 was accessible easily by transformation of the 6-methylthio derivative 277 by, e.g., isonicotinoyl hydrazide. Compounds 279 are stable in acid in contrast to parent triazolopurines 274 (X = H). Notable is their bronchodilatation effect, up to 100 x greater than that of theophylline (92TL3151) (Scheme 80). [Pg.128]

Diphenylacetone p-tosylhydrazone p-Toluenesulfonic acid, (a-benzylphenethylidene)hydrazide (8) Benzenesulfonic acid, 4-methyl-, [2-phenyl-1 -(phenylmethyl)ethylidene]hydrazide (9) (19816-88-7) Trifluoroacetic acid Acetic acid, trifluoro- (8,9) (76-05-1)... [Pg.212]

The 2,5-diaryl-substituted 1,3,4-oxadiazoles 27 were obtained from the anhydrides 2 and 19 and the hydrazides of aromatic acids in acetic acid in the presence of pora-toluenesulfonic acid [14],... [Pg.5]

The condensation of the anhydride (1) with the hydrazides of arenecarboxylic acids 127 in the presence of p-toluenesulfonic acid gave the 2-aryl-3-amino-4-quinazolones 128 [77],... [Pg.20]

Toluenesulfonic acid hydrazide (tosylhydrazide) [1576-35-8] M 186.2, m 108-110", 109-110". Dissolve the hydrazide in hot MeOH ( lg/4tnl), filter through Celite and precipitate the material by adding 2-2.5 volumes of distilled H2O. Dry it in air or in a vacuum. [Fiedman et al. Org Synth Coll Vol V 1055 1973, Beilstein 11II 66.]... [Pg.387]

Benzenesulfonic acid, 4-methyl-, hydrazide. See p-Tolylsulfonyl hydrazine Benzenesulfonic acid, 4-methyl-, sodium satt. See Sodium toluenesulfonate Benzenesulfonic acid, mono-C10-14-alkyl derivs.. See CIO-14 alkyl benzenesulfonic acid... [Pg.1992]

Trade Names Eltesol TA Series Kualimate TSA 65 STEPANATE PTSA Series Trade Names Contammg Eltesol TA 65 Toluene-p-sulfonic acid. See p-Toluene sulfonic acid p-Toluenesulfonic acid, hydrazide. See p-Tolylsulfonyl hydrazine 4-Toluenesulfonic acid sodium salt p-Toluenesulfonic acid, sodium saK. See Sodium toluenesulfonate... [Pg.2505]

Synonyms Benzenesulfonic acid, 4-methyl-, hydrazide Hydrazine, p-tolylsulfonyl- p-Toluenesulfonhydrazide p-Toluenesulfonic acid, hydrazide p-Toluenesulfono-hydrazide p-Toluenesulfonyl hydrazide N-Toluolsulfonyl hydrazine Tolylsulfonyl hydrazine Tosyl hydrazide... [Pg.2505]

See other pages where Toluenesulfonic hydrazide is mentioned: [Pg.430]    [Pg.430]    [Pg.370]    [Pg.93]    [Pg.90]    [Pg.78]    [Pg.123]    [Pg.25]    [Pg.66]    [Pg.216]    [Pg.124]    [Pg.32]    [Pg.51]    [Pg.370]    [Pg.48]    [Pg.344]    [Pg.143]    [Pg.109]    [Pg.108]    [Pg.4451]    [Pg.4461]    [Pg.37]    [Pg.82]    [Pg.242]    [Pg.90]    [Pg.361]   
See also in sourсe #XX -- [ Pg.124 , Pg.125 , Pg.235 ]



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Toluenesulfonates

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