Cu(I)-catalyzed reaction of diazo compounds with terminal alkynes: a direct synthesis of trisubstituted furans
作者:Mohammad Lokman Hossain、Fei Ye、Yan Zhang、Jianbo Wang
DOI:10.1016/j.tet.2014.07.086
日期:2014.9
method for the synthesis of tri-substituted furans has been developed based on Cu(I)-catalyzed reaction of terminalalkynes with β-keto α-diazoesters. This method for the synthesis of 2,3,5-trisubstituted furans is operationally simple and applicable to wide substrate scope. Moreover, this synthesis employs cheap Cu(MeCN)4PF6 as the catalyst and no additional ligand is needed. Similar reaction has also been
Tuning radical reactivity using iodine in oxidative C(sp<sup>3</sup>)–H/C(sp)–H cross-coupling: an easy way toward the synthesis of furans and indolizines
作者:Shan Tang、Kun Liu、Yue Long、Xiaotian Qi、Yu Lan、Aiwen Lei
DOI:10.1039/c5cc01825k
日期:——
Molecular iodine was found to be an effective redox catalyst for the oxidative cross-coupling of carbonyl compounds with terminal alkynes.
分子碘被发现是一种有效的氧化还原催化剂,可用于羰基化合物与末端炔烃的氧化交叉偶联反应。
KRETCHMER R. A.; LAITAR R. A., J. ORG. CHEM., 1978, 43, NO 24, 4596-4598
作者:KRETCHMER R. A.、 LAITAR R. A.
DOI:——
日期:——
US4025537A
申请人:——
公开号:US4025537A
公开(公告)日:1977-05-24
Preparation of 3-carboalkoxy or 3-alkanoyl furans
申请人:——
公开号:US04025537A1
公开(公告)日:1977-05-24
A large group of derivatives of 3-furoic acid and 3-furyl ketones can be prepared in high yield by a process which consists of reacting an .alpha.,.beta.-unsaturated ketone having either an .alpha.-carboalkoxy or .alpha.-acyl group with N-bromosuccinimide and thermally cyclizing the resulting bromine containing intermediate.