Chemistry Letters p. 187 - 190 (1980)
Update date:2022-07-29
Topics:
Barrios, Luis
Ruiz, V. Manuel
Tapia, Ricardo
Valderrama, Jaime
Vega, Juan C.
The reaction of 2-acetyl- and 5-acetyl-2-methoxy-1,4-benzoquinone (1a, 1c) with N-propenylpiperidine gave the corresponding 2,3-dihydrobenzofurans, 2b and 2c, containing the acetyl group at C-4.Acid treatment of these dihydrofurans rearranged to 8-methyl- and 2-methoxy-8-methyljuglone (4a, 4b).Juglone (4c) and 2,3-dihydrojuglone (6) were obtained in fair yields from 4-acetyl-2,5-dihydroxy-2,3-dihydrobenzofuran (2e).
View MoreShanghai Sunwise Chemical Co., Ltd
website:http://www.sunwisechem.com
Contact:86-021-33883180
Address:Room 10E, Building G, Westlink Center, No. 2337 Gudai Road, Minhang District, Shanghai, China PC: 201100
Beijing Mashi Fine Chemical Co.,Ltd.
Contact:+86-10-61271592
Address:Room 506, Section B, Kaichi Mansion, Industrial Development
SHANDONG ZHANHUA YONGHAO PHARMACEUTICAL TECH.CO.,LTD
Contact:+86-576-88685096
Address:GENGJU VILLAGE NORTH ONE KILOMETER,ZHANHUA DISTRICT,BINZHOU CITY,SHANDONG PROVINCE,CHINA.
Shenzhen Feiming Science and Technology Co,. Ltd
Contact:+86-755-85232577
Address:#B2309, Fenglin International Center ,Jixiang Road, Longcheng street, LongGang District, Shenzhen city, Guangdong province, China.
Shanghai Coupling Pharmaceutical R&D Co., Ltd.(expird)
Contact:+86 021 50106671
Address:403 Room No.4 Buiding, No. 526 Ruiqing Road, Shanghai Zhangjiang Hi-Tech Park
Doi:10.1021/jm00379a004
(1985)Doi:10.1021/ja01232a027
(1944)Doi:10.1002/ardp.200600169
(2007)Doi:10.1002/anie.200603656
(2007)Doi:10.1016/j.tetasy.2003.11.007
(2004)Doi:10.1021/jo00200a007
(1984)
