Chemistry Letters p. 1057 - 1060 (1982)
Update date:2022-08-04
Topics:
Agarwal, Nand L.
Sheeren, Hans W.
The Diels-Alder type cycloaddition of several substituted buta-1,3-dienes with 9-chloro-10-hydroxy-1,4-anthraquinone (10) affords an efficient, regiospecific access in two steps to tetracyclic ketones (12-14) which have been investigated as intermediates for the synthesis of anthracycline derivatives.Butadienes with a less asymmetric ?-electron distribution than 9 give lower regiospecificity in cycloadditions with 10.Depending on the substituents in the used butadiene, the obtained cycloadducts are transformed under the reaction circumstances into the aromatized products (15-20).
View MoreContact:+86-574-87065746
Address:10th Floor, No.787 Baizhang East Road,
shijiazhuang baisheng chem co.; ltd
Contact:86-0311-80790826
Address:shijiazhuang hebei
Contact:+86-10-59484199
Address:No.58-A1026 Liangguan Street
Contact:+852-8198 2399
Address:9E, Leapont Industrial Building, 18-28 Wo Liu Hang Road, Shatin, New Territories, Hong Kong
Shanghai Forever Synthesis Co.,Ltd.
Contact:021-61124658
Address:Zhoukang Road,Pudong New District,Shanghai,China
Doi:10.1016/0957-4166(94)80113-4
(1994)Doi:10.1111/j.2042-7158.1986.tb03382.x
(1986)Doi:10.1039/P19940001411
(1994)Doi:10.1021/jo500177k
(2014)Doi:10.1021/ja412897a
(2014)Doi:10.1016/j.poly.2014.01.034
(2014)
