Gujar, Jitendra B. published the artcileSynthesis of Dihydropyrano[2,3-C]pyrazoles Using Mandelic Acid as an Efficient Catalyst, Formula: C8H8O3, the publication is Organic Preparations and Procedures International (2022), 54(2), 138-144, database is CAplus.
A simple new synthetic protocol for the preparation of dihydropyrano[2,3-C]pyrazole derivatives I (R = 4-methylphenyl, piperonyl, Et, etc.) using conventional and US methods with green characteristics. The model reaction was performed using one-pot MCR of Et acetoacetate, hydrazine hydrate, p-methylbenzaldehyde RCHO, and malononitrile in water at reflux or US method, using mandelic acid as an efficient catalyst. The considerable advantages of these methods include short reaction times, very good yields, and the avoidance of the use of environmentally hazardous solvents.
Organic Preparations and Procedures International published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C8H8O3, Formula: C8H8O3.
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