In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Product Details of 22876-22-8, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 22876-22-8, name is 5-Methylbenzo[d]oxazole-2(3H)-thione. In an article£¬Which mentioned a new discovery about 22876-22-8
STUDIES ON HETEROCYCLIC COMPOUNDS. XXXIV. SYNTHESIS OF 2-SUBSTITUTED AMINOBENZOXAZOLES WITH NICKEL PEROXIDE
Oxidation of N-methyl (or phenyl)-N’-(4-methylpyrid-2-yl)thiourea (Ia, b) with nickel peroxide (Ni-PO) under reflux in benzene or acetonitrile afforded the corresponding ureas (IIa, b).N-(2-Hydroxy-5-methylphenyl)-N’-methylthiourea (IVa) was synthesized by the reaction of 2-amino-4-methylphenol (III) and methyl isothiocyanate in benzene under reflux.Howevwer, the reaction of III and phenyl isothiocyanate in benzene under reflux did not afford the thiourea (IVb) but IVb was obtained in ethanol at room temperature.NiPO oxidation of thioureas (IVa-f) in acetonitrile at room temperature afforded 2-substituted aminobenzoxazoles (VIIa-f) in good yields.The reaction mechanisms of Ni-PO and thioureas (Ia, b and IVa-f) are discussed.Keywords: – N-substituted N’-(4-methylpyrid-2-yl)thioureas; N-substituted N’-(4-methylpyrid-2-yl)ureas; N-(2-hydroxyphenyl) N’-substituted thioureas; 2-substituted aminobenzoxazoles; nickel peroxide; oxidative cyclization; 2-mercaptobenzoxazole; isothiocyanates
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Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem