Tetrahedron p. 5503 - 5514 (1994)
Update date:2022-07-29
Topics:
Chiacchio, Ugo
Buemi, Giuseppe
Casuscelli, Francesco
Procopio, Antonio
Rescifina, Antonio
Romeo, Roberto
A series of nitrones 5 joined by amides to olefines were prepared in situ from the related aldehydes with N-methylhydroxylamine. The nitrone added intramolecularly to the olefin, and the cycloadditions gave fused γ-lactams 6 stereoselectively. A stereocentre located in positron α to the nitronic functionality 13 completely controls the stereochemical course of the intramolecular cycloaddition, which exclusively affords compound 14 with simultaneous introduction of four stereocentres. The formation of this latter compound was also supported by PM3 calculations. Furthermore, simple heating of unsaturated oxine 17 led to compound 19 via intramolecular oxime olefin cycloaddition.
View MoreContact:+86-158-05817090
Address:ROOM 9F, FLAT 2, GUODU DEVELOPING BLDG, No.182, ZHAOHUI ROAD
Shanghai Micro-mega Industry Co., Ltd.
Contact:0086-21-34628682;57153848
Address:Rm413,No.413,West Meilong Road, Minhang District,Shanghai P R China
HANGZHOU EVC CHEMICAL CO.,LTD.(expird)
Contact:+86-571-88296056
Address:Room#3001,Zhejiang Chemical Market,No.10,Road Shenban,Hangzhou,Zhejiang,China
Shijiazhuang Sdyano Fine Chemical Co., Ltd
Contact:+86-311-89830448
Address:NO.48 Ta Nan Road,Yuhua District,Shijiazhuang,Hebei,China
Beijing Stable Chemcial Co.ltd
Contact:86-10-63785052
Address:A1301 Technological Edifice. No.4 FuFeng Road,FengTai District, Beijing. China
Doi:10.1021/jm4003632
(2013)Doi:10.1002/hlca.19670500206
(1967)Doi:10.1002/ardp.201300238
(2014)Doi:10.1016/S0040-4039(00)76711-6
(1994)Doi:10.1016/j.tetlet.2014.02.008
(2014)Doi:10.1021/om00020a050
(1994)