Chemistry Letters p. 229 - 230 (1981)
Update date:2022-09-26
Topics:
Yamaoka, Hiroshi
Kashiwagi, Kouichi
Hanafusa, Terukiyo
The reactions of the methylenehomochromene (titled compound) (1) with orthoformates (2a,b) or acetals (2c-f) easily took place in the presence of anhydrous zinc chloride to give 5-alkoxyethyl-2,3-dihydro-1-benzoxepin derivatives (3a-f) in moderate to good yields.Unusually high reactivity of 1 may be due to homoaromatic stabilization in the reaction intermediate.
View MoreContact:+86-21-56338808
Address:799 Dunhuang Road, Putuo
ZhangJiaGang YaRui Chemical Co.,Ltd.
Contact:0512-58360968
Address:China JiangSu Province Zhang Jia Gang City YangShe Oriental Plaza Building 10 B307
Shijiazhuang Haitian Amino Acid Co., Ltd.
Contact:+86-311-88908111
Address:Shijiazhuang Hebei province,China
shanghai jiuling chemical co.,ltd.
Contact:+86-21-50387295
Address:Zaozhuang Road, Pudong, Shanghai City. China
Taizhou Chemedir Biopharm-tech Co., Ltd
Contact:+86 523 86200218
Address:G09, No. 1 Avenue China Medical City, Taizhou,Jiangsu, China
Doi:10.1016/j.bmcl.2004.07.089
(2004)Doi:10.1021/jo00331a041
(1981)Doi:10.1021/ja01463a033
(1961)Doi:10.1016/j.tetlet.2006.12.112
(2007)Doi:10.1021/jo990180z
(1999)Doi:10.1021/jm00355a020
(1983)
