@article{02fa3d028cc24bbf92385a3c500f79d7,
title = "(4 + 3) cycloadditions of allenyl ether-derived oxygen-stabilized oxyallyls with furans",
abstract = "(4 + 3) cycloadditions between allenyl ethers and furans are described. The reaction features an in situ formation of oxygen-stabilized oxyallyls via epoxidations of allenyl ethers in the presence of H2PO4-. The multiple interactions between the oxygen-stabilized oxyallyl species and H2PO4- were studied using DFT calculations for rationalization of the regio- and diastereoselectivity of this cycloaddition. The utilities of this cycloaddition have been demonstrated by converting the (4 + 3) cycloadduct into the cyclohepta[b]benzofuran skeleton of frondosin B in two steps.",
author = "Xian Huang and Waygen Thor and Xiangyu Feng and Liangliang Kang and Min Yang and Lee, {Chi Sing} and Cheng, {Yuen Kit} and Shuzhong He",
note = "Funding Information: We thank the National Natural Science Foundation of China (Grant No. 21562011, 21861010 and 21871017), the Science and Technology Foundation of Guizhou Province (Qian Ke He J Zi [2015]2047, Qian Ke He platform talents [2018]5781), the Case Base Construction Project for Guizhou Graduate Education (KCALK2017012), Guizhou University Talent Project (No. [2014]36) and Hong Kong Baptist University (RC-SGT2/18-19/SCI/005 and RC-ICRS-18-19-01A) for their financial support.",
year = "2020",
month = jan,
day = "21",
doi = "10.1039/c9qo01349k",
language = "English",
volume = "7",
pages = "255--260",
journal = "Organic Chemistry Frontiers",
issn = "2052-4110",
publisher = "Royal Society of Chemistry",
number = "2",
}