Synthesis of Trifunctionalized Naphtho[1,2-<i>b</i>]furans Based on the Strategy for the Construction of Both Furan and Naphthalene Cycle
作者:Shanjian Mao、Yinbo Wan、Haiyun Peng、Li Luo、Guisheng Deng
DOI:10.1021/acs.joc.9b00058
日期:2019.5.3
available conjugated diazo ene-yne-ketones under O2 atmosphere led to the formation of diazo trisubstituted furans. The Rh2(OAc)4-mediated selective C(sp2)–H insertion at the ortho-position of 2-aryl group (R1) of the furan moiety under N2 atmosphere occurred to construct naphthalene cycle, affording trifunctionalized naphtho[1,2-b]furans. C(sp2)–H insertion at the 4-position of the furan ring, and Wolf rearrangement
Chemistry of Diazopolycarbonyl Compounds: IX. Synthesis of 6-Aryl-3-acyl-4-hydroxypyridazines by Heterocyclization of 1,5-Disubstituted 2-Diazo-1,3,5-pentanetriones
作者:N. V. Kutkovaya、N. A. Pulina、V. V. Zalesov
DOI:10.1023/b:rujo.0000045200.31315.f1
日期:2004.7
5-Aryl-2-diazo-1,3,5-pentanetriones undergo intramolecular cyclization by the action of triphenylphosphine to give triphenylphosphine oxide and substituted 6-aryl-3-acyl-4-hydroxypyridazines.
Andreichikov, Yu.S.; Gein, L.F.; Gein, V.L., Journal of Organic Chemistry USSR (English Translation), 1981, vol. 17, p. 545 - 550