Organic Letters
Organic Letters
5 years ago

Solvent-Controlled Chemoselectivity in the Photolytic Release of Hydroxamic Acids and Carboxamides from Solid Support

Solvent-Controlled Chemoselectivity in the Photolytic Release of Hydroxamic Acids and Carboxamides from Solid Support
Thomas E. Nielsen, Asmus O. Dohn, Klaus B. Møller, Rico G. Petersen, Katrine Qvortrup
The synthetic utility and theoretical basis of a photolabile hydroxylamine-linker are presented. The developed protocols enable the efficient synthesis and chemoselective photolytic release of either hydroxamates or carboxamides from solid support. The bidetachable mode of the linker unit is uniquely dependent on the solvent. Hydroxamic acids are obtained by performing photolysis in protic solvents, whereas photolysis in aprotic solvents enables the selective release of carboxamides.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01386

DOI: 10.1021/acs.orglett.7b01386

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