Katariya, Ashishkumar P. published the artcileAn Efficient and Green Synthesis of Tetrahydrobenzo[b]pyran Derivatives Using [(EMIM)Ac] at Room Temperature, SDS of cas: 134-96-3, the publication is ChemistrySelect (2022), 7(15), e202104184, database is CAplus.
An efficient, expedient, clean, and environmentally benign synthesis of twenty tetrahydrobenzo[b]pyran derivatives I (R = 4-H2NC6H4, 3-MeOC6H4, 2-furyl, 2-HOC6H4, etc.), is reported via a one-pot three-component condensation reaction of various benzaldehydes with dimedone and malononitrile in the presence of ionic liquid [(EMIM)Ac] as a catalyst at ambient temperature in ethanol. Advantages of this reaction follow the principle of green chem., which includes operational simplicity, shorter reaction times, and mild reaction conditions with high yield (78-98%) products.
ChemistrySelect published new progress about 134-96-3. 134-96-3 belongs to ethers-buliding-blocks, auxiliary class Immunology/Inflammation,COX,Natural product, name is 4-Hydroxy-3,5-dimethoxybenzaldehyde, and the molecular formula is C9H10O4, SDS of cas: 134-96-3.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem