Munakala, Anandarao published the artcileSteric and Electronic Control Intramolecular [2 + 2]-Cycloaddition of Cyclohexadienone-Containing 1,7-Enynes, Category: alcohols-buliding-blocks, the publication is Organic Letters (2022), 24(3), 892-896, database is CAplus and MEDLINE.
Herein, authors have developed silver-catalyzed an electronic and steric control intramol. formal [2 + 2]-cycloaddition of alkyne-tethered cyclohexadienones. Substrates with electron-rich alkynes and less hindered quaternary carbon center afford tricyclic fused-cyclobutenes through 1,7-enyne cyclization. In contrast, the formation of dihydrofurans was observed from electron-deficient alkynes via proton abstraction/C-O bond cleavage. The synthetic potential of this method was also broadened with a gram-scale reaction and various transformations on cyclobutene.
Organic Letters published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Category: alcohols-buliding-blocks.
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