Helvetica Chimica Acta p. 1732 - 1736 (1987)
Update date:2022-07-29
Topics:
Trifonov, Latchezar S.
Orahovats, Alexander S.
The intramolecular Diels-Alder reaction conducted with acetylenic acylureas, obtained from carbodiimides, and the acetylenic acid 5 and its derivatives 13 gave the 1,2-annellated barrelene 14 (from 13a) and the benzobarrelenes 8 (from 5) and 15 (from 13b); in the case of 3-butyinoic acid (1), <1,3>-H shifts were observed.The formation of the azabarrelenes 16 (from 13c) as an intermediate is postulated which looses HCN to afford the indolinone 17.The acylureas 6 and 9 underwent isocyanate cleavage instead of <4 + 2> cyclization.
View MoreContact:+86 18616952870
Address:Area
Shanghai Yuanye Bio-Technology Co., Ltd.
website:http://www.shyuanye.com
Contact:+86-21-61845781
Address:Building 6, No. 465, Changta Road,Songjiang District,Shanghai,China
Shanghai Yuanding Chem. Sci. & Tech. Co., Ltd.
website:http://www.shydtec.com
Contact:86-21-57721279
Address:Science and Technology Park, Songjiang District, Shanghai, China
Hebei Fulong Import & Export Co., Ltd.
Contact:86-311-87795661
Address:15A19 Zhongyuan Building,368 Youyi North Street,Shijiazhuang 050070,China
Contact:+86-21-61318535
Address:Building 29,No.2139 Xizha Road, Fengxian District, Shanghai
Doi:10.1016/j.bmc.2008.11.082
(2009)Doi:10.1002/adsc.200600263
(2006)Doi:10.1021/acsmedchemlett.8b00213
(2018)Doi:10.1021/ic802271y
(2009)Doi:10.1021/jm00403a004
(1988)Doi:10.1016/j.inoche.2010.07.003
(2010)
