Total synthesis of dl-tazettine and 6a-epipretazettine: a formal synthesis of dl-pretazettine. Some observations on the relationship of 6a-epipretazettine and tazettine
Total synthesis of dl-tazettine and 6a-epipretazettine: a formal synthesis of dl-pretazettine. Some observations on the relationship of 6a-epipretazettine and tazettine
Rh/Cu-Catalyzed Cascade [4+2] Vinylic C−H <i>O</i>
-Annulation and Ring Contraction of α-Aryl Enones with Alkynes in Air
作者:Yinsong Zhao、Shiqing Li、Xuesong Zheng、Junbin Tang、Zhijie She、Ge Gao、Jingsong You
DOI:10.1002/anie.201612147
日期:2017.4.3
An unprecedented Rh‐catalyzed ketone‐directed vinylic C−H activation/[4+2] O‐annulation of α‐aryl enones with internal alkynes followed by a Cu‐catalyzed ring contraction in air to provide multiaryl‐substituted furan derivatives has been developed. The preliminary mechanism study identifies the active pyryliumsalt as the key intermediate.
作者:Larry E. Overman、Robert L. Freerks、C. Bruce Petty、Lane A. Clizbe、Robert K. Ono、Garry F. Taylor、Peter J. Jessup
DOI:10.1021/ja00400a054
日期:1981.5
OVERMAN, L. E.;FREERKS, R. L.;PETTY, C. B.;CLIZBE, L. A.;ONO, R. K.;TAYLO+, J. AMER. CHEM. SOC., 1981, 103, N 10, 2816-2822
作者:OVERMAN, L. E.、FREERKS, R. L.、PETTY, C. B.、CLIZBE, L. A.、ONO, R. K.、TAYLO+
DOI:——
日期:——
Total synthesis of dl-tazettine and 6a-epipretazettine: a formal synthesis of dl-pretazettine. Some observations on the relationship of 6a-epipretazettine and tazettine