Total synthesis of alboatrin, a phytotoxic metabolite from Verticillium alboatrum
摘要:
A synthesis of the phytotoxic metabolite alboatrin 1 is described. An intramolecular ketene-olefin cycloaddition followed by an oxidative ring enlargement was employed to generate the tricyclic ring system. (c) 2008 Elsevier Ltd. All rights reserved.
Enantioselective Vanadium-Catalyzed Oxidative Coupling: Development and Mechanistic Insights
作者:Houng Kang、Madison R. Herling、Kyle A. Niederer、Young Eun Lee、Peddiahgari Vasu Govardhana Reddy、Sangeeta Dey、Scott E. Allen、Paul Sung、Kirsten Hewitt、Carilyn Torruellas、Gina J. Kim、Marisa C. Kozlowski
DOI:10.1021/acs.joc.8b02083
日期:2018.12.7
vanadium catalyst for enantioselectiveoxidativecoupling of phenols is reported, ultimately resulting in a simple monomeric vanadium species combined with a Brønsted or Lewis acid additive. The resultant vanadium complex is found to effect the asymmetric oxidative ortho–ortho coupling of simple phenols and 2-hydroxycarbazoles with good to excellent levels of enantioselectivity. Experimental and quantum
Total synthesis of alboatrin, a phytotoxic metabolite from Verticillium alboatrum
作者:Bidyut Biswas、Debayan Sarkar、Ramanathapuram V. Venkateswaran
DOI:10.1016/j.tet.2008.01.097
日期:2008.3
A synthesis of the phytotoxic metabolite alboatrin 1 is described. An intramolecular ketene-olefin cycloaddition followed by an oxidative ring enlargement was employed to generate the tricyclic ring system. (c) 2008 Elsevier Ltd. All rights reserved.
Synthesis of Substituted Resorcinol Monomethyl Ethers from 2-Bromo-3-methoxycyclohex-2-en-1-ones
作者:Wenjie Shao、Derrick L. J. Clive
DOI:10.1021/acs.joc.5b00192
日期:2015.3.20
1-ones are readily alkylated at C-6 with reactive halides, and then treatment with DBU (2 equiv) in PhMe at room temperature results in smooth loss of bromide and aromatization to resorcinol monomethylethers of defined substitution pattern.