Tetrahedron p. 1063 - 1072 (1994)
Update date:2022-08-03
Topics:
Kuroki
Kuroki, Yoshiaki
Akao
Akao, Ryosuke
Inazumi
Inazumi, Tomonori
Noguchi
Noguchi, Michihiko
Intramolecular ene reaction of 4-(2-alkenylamino)-3-formyl-2(2H)- chromenones 7 involving carbonyl enophile proceeded stereoselectively to afford 5-hydroxychromen[3,4-b]-azepines 14. The intramolecular nucleophilic attack of hydroxy group to the enemine moiety in 14 gave 1,2-dihydro-2,4- ethanochromen[4,3-d][1,3]oxazin-5(4H,5H)-one derivatives 13 as final products. PM3 MO calculations of the process reveal that this ene reaction proceeds with two steps through an intermediate.
View MoreCerametek Materials（ShenZhen）Co., Ltd.
Contact:+86-755-2324.2554
Address:A3-#9, YongChuan Street, Suite 501
Contact:
Address:
Wuhan Chemchemical Co., Ltd.(expird)
Contact:15973022782
Address:7-5-6218,Incubation Centre,Guandong Industry Park, East Lake High-Tech Development Zone,Wuhan City.
HangZhou HuaYe Chemical Technology Co.,Ltd
Contact:+86-13505815007
Address:hangzhou
Hangzhou Maytime Bio-Tech Co.,Ltd.
website:http://www.maytime.com.cn
Contact:+86-571-88925295 88920965
Address:NO.2-1701 Ganghui Central Ningwei Street, Xiaoshan Hangzhou Zhejiang China
Doi:10.1021/om4011774
(2014)Doi:10.1055/s-1999-3383
(1999)Doi:10.1016/0008-6215(93)84013-V
(1993)Doi:10.1016/S0040-4020(01)80235-0
(1993)Doi:10.1021/ol990102y
(1999)Doi:10.1016/S0040-4039(00)73937-2
(1993)
