Abstract
A procedure for the preparation of amides and esters on a Merrifield resin-bound benzyloxycarbonyl equivalent has been developed. Polymer-supported carbamates react cleanly with zinc bromide and the appropriate acyl halide in the presence of triethylamine to provide their corresponding amides in high yields and purities. Cleavage of resin-bound carbonates was carried out using the similar reagent systems in the absence of triethylamine to give acetates or benzoates.
Original language | English |
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Pages (from-to) | 6619-6622 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 41 |
Issue number | 34 |
DOIs | |
State | Published - 19 Aug 2000 |