Monatshefte fur Chemie p. 555 - 564 (1990)
Update date:2022-07-29
Topics:
Schubert-Zsilavecz, Manfred
Gusterhuber, Dagmar
Belaj, Ferdinand
Addition of trimethylbenzonitril oxide to 2-hydroxyethylamino-1,4-quinones and 3,4-dihydro-4-alkyl-8a-methoxy-2H-1,4-benzoxazin-6(8aH)-ones leads to 7,8,9a,9b-tetrahydro-3aH-1,2-oxazolo<4,5-h>-1,4-benzoxazin-4(6H)-ones.In order to determine constitution and conformation of the addition products an NMR-spectroscopic analysis and an X-ray crystal structure analysis of 6-benzyl-9a-hydroxy-3-mesityl-7,8,9a,9b-tetrahydro-3aH-1,2-oxazolo<4,5-h>-1,4-benzoxazin-4-(6H)-one 3a were carried out at room temperature: C25H26N2O4, Mr = 418.49, monoclinic, P21/n, a = 13.716(6), b = 19.993(6), c = 15.348(6) Angstroem, β = 98.55(4) deg, V = 4162(1) Angstroem3, Z = 8, dx = 1.336 g/cm3, R = 6.77percent, Rw = 4.55percent (2994 observables, 560 parameters).
View MoreContact:86-379-63338609
Address:Jiudian Village,Deting Town,Song County,Luoyang
Weifang Jahwa Chemical Co.,Ltd
Contact:0086-536-8897731,8897730
Address:No.5166 East Dongfeng Street,Weifang,Shandong,China
Taizhou Crene Biotechnology co.ltd
Contact:86-576-88813233 88205808
Address:Economic Developed Zone of Taizhou Zhejiang China
JiangXi Hong Run Chemical Co., Ltd
Contact:+86-0791-88521351
Address:XingHuo industrial zone in YongXiu county
Shaanxi HuaTai Bio-fine chemical company Ltd
Contact:86-029-87862197
Address:No. 5, 3rd Floor, 29 Yanta North Road, Beilin Dist.
Doi:10.1248/cpb.39.865
(1991)Doi:10.1016/j.jallcom.2010.11.044
(2011)Doi:10.1002/anie.201007876
(2011)Doi:10.1021/ja00181a070
(1990)Doi:10.1071/CH9901449
(1990)Doi:10.1002/hlca.19900730433
(1990)