Takafumi Honda, Michiko Ito, K. Yamaguchi
May 1, 2023
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Journal
Acta Crystallographica Section E: Crystallographic Communications
Abstract
1-(4,5-Dimethoxy-2,3-dinitrophenyl)-2-methylpropyl butylcarbamate, which affords butylamine on photoirradiation, was prepared by the reaction of 1-(4,5-dimethoxy-2,3-dinitrophenyl)-2-methylpropan-1-ol and butylisocyanate using dibutyltin dilaurate as a catalyst. Single crystals of the carbamate were grown in a 1:1 mixed solution of hexane and ethyl acetate. Two nitro groups and one methoxy group of the novel photo-protecting group were twisted out of the plane of the aromatic ring and intermolecular hydrogen bonds are observed between carbamate moieties.