Pora-toluenesulfonic acid

Toluenesulfonic acid, 25 185, 75 168 Toluenesulfonyl chloride, 25 186 pora-Toluenesulfonic acid, 25 185 p-Toluenesulfonylhydr azide, 13 593 Toluhydroquinone, 20 105 Toluidine... [Pg.958]

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]

Our independent study of E-caprolactone formation from cyclohexanone revealed that this process is Bronsted-acid catalyzed [30]. As summarized in Table 4.2, basically no conversion of the starting cyclohexanone occurred within 4h in acid-free HFIP. Unlike alkene epoxidation (see Section 4.3.2.2), the catalytic activity was not spedflc for the arsonic acid, but all Bronsted acids tested were catalytically active in HFIP as solvent. Pora-toluenesulfonic acid was identified as the most practical catalyst and... [Pg.136]

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