Cesium Carbonate Catalyzed Esterification of <i>N</i>-Benzyl-<i>N</i>-Boc-amides under Ambient Conditions
作者:Danfeng Ye、Zhiyuan Liu、Hao Chen、Jonathan L. Sessler、Chuanhu Lei
DOI:10.1021/acs.orglett.9b02513
日期:2019.9.6
We report a general activated amide to ester transformation catalyzed by Cs2CO3. Using this approach, esterification proceeds under relatively mild conditions and without the need for a transition metal catalyst. This method exhibits broad substrate scope and represents a practical alternative to existing esterification strategies. The synthetic utility of this protocol is demonstrated via the facile synthesis of crown ether derivatives and the late-stage modification of a representative natural product and several sugars in reasonable yields.
Markovskii, L. N.; Bobkova, L. S.; Yaremenko, V. V., Journal of Organic Chemistry USSR (English Translation), 1983, vol. 19, # 8, p. 1444 - 1447
作者:Markovskii, L. N.、Bobkova, L. S.、Yaremenko, V. V.、Pashinnik, V. E.
DOI:——
日期:——
MARKOVSKIJ, L. N.;BOBKOVA, L. S.;YAREMENKO, V. V.;PASHINNIK, V. E., ZH. ORGAN. XIMII, 1983, 19, N 8, 1632-1635
作者:MARKOVSKIJ, L. N.、BOBKOVA, L. S.、YAREMENKO, V. V.、PASHINNIK, V. E.
DOI:——
日期:——
PASHINNIK, V. E.;TOVSTENKO, V. I.;BOBKOVA, L. S.;MARKOVSKIJ, L. N., ZH. ORGAN. XIMII, 1985, 21, N 10, 2072-2076
作者:PASHINNIK, V. E.、TOVSTENKO, V. I.、BOBKOVA, L. S.、MARKOVSKIJ, L. N.