《Synthesis of coumarin derivatives in a microfluidic flow system employing the Pechmann condensation: A case study》 was written by Liu, Ling-Kang; Deng, Jhao-Hong; Guo, Yang-Ming. COA of Formula: C7H8O2 And the article was included in Journal of the Chinese Chemical Society (Weinheim, Germany) in 2020. The article conveys some information:
For the synthesis of coumarin derivatives using the Pechmann condensation scheme, an acidic ionic liquid catalyst, abbreviated as [EBsImH][HSO4], was prepared from the ring opening of 1,4-butanesultone by 1-ethylimidazole, followed by the addition of 1 equivalent H2SO4(c). The [EBsImH][HSO4]-catalyzed Pechmann condensation reactions proceeded smoothly in a batch setup, with recyclable [EBsImH][HSO4] showing great catalytic activity. The acidic ionic liquid catalyst [EBsImH][HSO4] was recovered from EtOAc/H2O extraction of the product mixture, where the H2O layer was worked up and dried for reuse in consecutive runs of the Pechmann condensation reactions, maintaining >85% conversion for four times. The catalytic reactions were also carried out in a microfluidic flow setup. The flow parameters, the reactant molar amounts, and the addnl. H2SO4 as a modifying acid catalyst were optimized in the current case study. A min. conversion rate of 2.8 g/h of coumarin derivatives was demonstrated. The results came from multiple reactions, including the reaction of m-Methoxyphenol(cas: 150-19-6COA of Formula: C7H8O2)
m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneCOA of Formula: C7H8O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem