Yang, Biao published the artcilePhotoacid-Enabled Synthesis of Indanes via Formal [3 + 2] Cycloaddition of Benzyl Alcohols with Olefins, Product Details of C9H10O4, the publication is Organic Letters (2022), 24(10), 2040-2044, database is CAplus and MEDLINE.
An environmentally friendly and high diastereoselective method for synthesizing indanes was developed via a metastable-state photoacid system containing catalytic protonated merocyanine (MEH). Under visible-light irradiation, MEH yields a metastable spiro structure and liberated protons, which facilitated the formation of carbocations from benzyl alcs., thus delivering diverse mols. in the presence of various nucleophiles. Mainly, a variety of indanes was easily obtained from benzyl alcs. and olefins and water was the only byproduct.
Organic Letters 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 C5H7NO, Product Details of C9H10O4.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem