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 MoreContact:+1-284-4950244
Address:Box 3069, Road Town, Tortola, British Virgin Islands
Contact:+86-25-85281586
Address:13F,Bld2#,South of Longpan Road
Contact:+86-838-5655598
Address:Guanghan Nanfeng Industrial Zone
Xi'an Galaxy Chemicals CO., Ltd
Contact:86-29-89380370
Address:No.8, Gaoxin three road, Xi'an city.
Chuzhou Baiao Biologhy S&T Co., Ltd.
Contact:+86-25-83212599；+86-25-83212699 13705185959
Address:Room 905, Tianzheng International Platza, No.399, Zhongyang Road ,Nanjing, Jiangsu Province, China
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)
