Synthetic Communications p. 914 - 927 (2008)
Update date:2022-07-30
Topics:
Yilmaz, Mehmet
Yakut, Mehtap
Pekel, A. Tarik
We have obtained dihydrofurans 3a-j in the radical cyclization of 4-hydroxycoumarin 1a and 2-hydroxy-1,4-naphtoquinone 1b with electron rich alkenes 2a-i by manganese(III) acetate. Methods A and B, which have different molar ratios were studied comparatively in these reactions, and we observed that method B (molar ratio 2:1:3) gave the best results. Treatment of 4-hydroxycoumarin 1a and electron rich alkenes 2a-e gave 2,3-dihydro-4H-furo[3, 2-c]chromen-4-ones 3a-e in 36-86% yields by the method B. Under the same conditions, the reactions of 2-hydroxy-1,4-naphtaquinone 1b with conjugated alkenes 2b and 2f-i afforded 2,3-dihydronaphtho[2,3-b]furan-4,9-diones 3f-j in an excellent yields. Copyright Taylor & Francis Group, LLC.
View MoreYanCheng LongShen Chemical Co.,Ltd.
Contact:+86-515-86668866
Address:No.13,Weiyi Road,Funing Aoyang Industrial Park
Contact:86-532-68629711 13780605697
Address:NO 220 YANAN 3 ROAD,(POST ADMINISTRATION BUILDING),QINGDAO,CHINA
Laizhou City Laiyu Chemical CO.,Ltd
Contact:+86-535-2719337/2719339
Address:Chenggang road zhuyou laizhou City Shangdong China
SuZhou Bichal Biological Technology CO.,LTD
Contact:+86-512-68051130
Address:NO.32 huoju road HI-TECH Industrial development zone SuZhou China
Nanjing Fayekong Chemcial Co.,Ltd(expird)
Contact:86-25-58813444
Address:Rm 1503, Unit 1, Building 5, Zijinnanyuan, Nanjing, Jiangsu, China
Doi:10.1021/ic702010w
(2008)Doi:10.1002/anie.200704629
(2008)Doi:10.1021/jo800328a
(2008)Doi:10.1042/bj1190803
(1970)Doi:10.1039/jr9510000104
(1951)Doi:10.1002/anie.201711197
(2018)