1,4-Benzoxazin-2-ones, benzo[<i>d</i>]oxazoles and 2<i>H</i>-1,4-benzoxazines from the reaction of 2-(methoxyimino)benzen-1-ones with arylacetates, arylacetic acids and<i>trans-</i>stilbene
作者:Demetrios N. Nicolaides、R. Wajih Awad、Evangelia A. Varella
DOI:10.1002/jhet.5570330318
日期:1996.5
10-(Methoxyimino)phenanthrene-9-one 1 reacts thermally with the arylacetic derivatives 2(a-j) to yield the corresponding 1,4-benzoxazin-2-ones 4(a-d,f) and benzo[d]oxazoles 5(a-e,g). Similarly, reaction of the monoximes 7a, 7b with compounds 2a, 2d respectively affords 8a, 8b, while action of trans-stilbene on the monoximes 1, 7a, 7b leads to the 1,4-benzoxazines 10, 11, 13, obtained along with the
10-(甲氧基亚氨基)菲-9-酮1下热与arylacetic衍生物进行反应2(AJ),得到相应的1,4-苯并恶嗪-2-酮4(广告,F)和苯并[ d ]恶唑-5(AE, g)。类似地,monoximes的反应7a,图7b用化合物2A,图2d分别得到图8A,8B,而动作反式对monoximes芪1,7A,7B通向1,4-苯并恶嗪10,11,13,而获得沿与相应的2-苯基恶唑5a,8a,8c和化合物12。
The preparation of annulated 1,3-oxazoles from 1,3,2-oxazaphospholes and aldehydes
AbstractThe reactions of 2,3-dihydro-2,2,2-triphenylphenanthro[9,10-d]-1,3,2-λ5-oxazaphospholes with aromatic aldehydes lead to the corresponding 2-substituted phenanthro[9,10-d][1,3]oxazoles via an aza-Wittig reaction in good yields. Graphical abstract
摘要2,3-二氢-2,2,2- triphenylphenanthro [9,10-的反应d ] -1,3,2-λ 5个-oxazaphospholes与芳香醛导致相应的2-取代的菲并[9,10- d ] [1,3]恶唑可通过aza-Wittig反应获得高收率。 图形概要