Development and Mechanistic Study of Quinoline-Directed Acyl C–O Bond Activation and Alkene Oxyacylation Reactions
作者:Giang T. Hoang、Dylan J. Walsh、Kathryn A. McGarry、Constance B. Anderson、Christopher J. Douglas
DOI:10.1021/acs.joc.6b03011
日期:2017.3.17
acyl substituent across an alkene, oxyacylation of alkenes, using rhodium catalyzed C–O bond activation of an 8-quinolinyl ester is described. Our unsuccessful attempts at intramolecular carboacylation of ketones via C–C bond activation ultimately informed our choice to pursue and develop the intramolecular oxyacylation of alkenes via quinoline-directed C–O bond activation. We provide a full account
Pd-Catalyzed regioselective hydroesterification of 2-allylphenols to seven-membered lactones without external CO gas
作者:Wenju Chang、Jingfu Li、Wenlong Ren、Yian Shi
DOI:10.1039/c5ob02663f
日期:——
Effective Pd-catalyzedregioselectivehydroesterification of 2-allylphenols with phenyl formate is described. A variety of seven-membered lactones can be obtained in good yields under mild conditions without the use of toxic CO gas.
The Introduction of Isobutyl Groups into Phenols, Cresols and Homologous Compounds
作者:Quentin R. Bartz、Richard F. Miller、Roger Adams
DOI:10.1021/ja01305a044
日期:1935.2
Microwave-assisted combined Mitsunobu reaction–Claisen rearrangement and microwave-assisted phenol oxidation: rapid synthesis of 2,6-disubstituted-1,4-benzoquinone natural products
作者:Aouregan M. Jacob、Christopher J. Moody
DOI:10.1016/j.tetlet.2005.10.096
日期:2005.12
Microwave irradiation of a phenol, an allylic alcohol, di-isopropyl azodicarboxylate and triphenylphosphine at 220-240 degrees C for 30 min results in a combined Mitsunobu reaction and Claisen rearrangement to give the rearranged 2-allylphenol. Following the first detailed study of microwave-assisted phenol oxidation, rapid syntheses of the natural products primin and 2-methoxy-6-pentadecyl-1,4-benzoquinone (four reaction steps, total reaction time I h) were achieved using this combined Mitsunobu-Claisen strategy in combination with two further microwave-assisted steps (alkene hydrogenation and phenol oxidation). (c) 2005 Elsevier Ltd. All rights reserved.