Synthesis and Characterization of Multiple Functionalized Cyclohexanone Using Diels–Alder Reaction of α-Nitrocinnamate

Autor: Takumi Hamada, Kento Iwai, Nagatoshi Nishiwaki
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Reactions, Vol 3, Iss 4, Pp 615-624 (2022)
Druh dokumentu: article
ISSN: 2624-781X
DOI: 10.3390/reactions3040041
Popis: A systematic study of the Diels–Alder reaction of α-nitrocinnamate was performed. The reaction of p-substituted α-nitrocinnamate with 2,3-dimethyl-1,3-butadienes smoothly proceeded regardless of the p-substituent, which was either an electron-donating or -withdrawing group. A control reaction revealed that α-nitrocinnamate isomerized during the reaction. Danishefsly’s diene (1-methoxy-3-trimethylsiloxy-1,3-butadiene) facilitated cycloaddition under mild conditions to afford a cycloadduct without the alternation of the diastereomeric ratio. Moreover, the desilylation of the cycloadduct furnished multiple functionalized cyclohexanones.
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