Debenzylation of Functionalized 4- and 5-Substituted 1,2,3-Triazoles
摘要:
A range of 4- and 5-substituted N-benzyl-1,2,3-triazoles have been submitted to debenzylation using Pd/C and hydrogen in the presence of 1,1,2-trichloroethane. Triazoles with oxygen-containing substituents are efficiently debenzylated under these conditions. Triazoles with a phenyl or benzyl substituent on C4 or C5 are not debenzylated, whereas a pentyl-substituted derivative was readily debenzylated.
Investigation of copper-free alkyne/azide 1,3-dipolar cycloadditions using microwave irradiation
作者:Lindsay E. Chatkewitz、John F. Halonski、Marshall S. Padilla、Douglas D. Young
DOI:10.1016/j.bmcl.2017.12.007
日期:2018.1
The prevalence of 1,3-dipolarcycloadditions of azides and alkynes within both biology and chemistry highlights the utility of these reactions. However, the use of a copper catalyst can be prohibitive to some applications. Consequently, we have optimized a copper-free microwave-assisted reaction to alleviate the necessity for the copper catalyst. A small array of triazoles was prepared to examine the
A range of 4- and 5-substituted N-benzyl-1,2,3-triazoles have been submitted to debenzylation using Pd/C and hydrogen in the presence of 1,1,2-trichloroethane. Triazoles with oxygen-containing substituents are efficiently debenzylated under these conditions. Triazoles with a phenyl or benzyl substituent on C4 or C5 are not debenzylated, whereas a pentyl-substituted derivative was readily debenzylated.