Synthesis of 1,4-dihydro-benzo[d][1,3]oxazin-2-ones from phthalides via an aminolysis-Hofmann rearrangement protocol
摘要:
A simple two-step procedure for the conversion of readily available phthalides to the corresponding benzoxazinones was developed. Initial ring-opening aminolysis to form a primary 2-hydroxymethylbenzamide, followed by reaction with bis(trifluoroacetoxy)iodobenzene (BTI) conveniently, provided a variety of 4-substituted benzoxazinones. Published by Elsevier Ltd.
Directed ortho metallation of tertiary aromatic amides
作者:M. Iwao、K.K. Mahalanabis、M. Watanabe、S.O. De Silva、V. Snieckus
DOI:10.1016/s0040-4020(01)91913-1
日期:1983.1
cryptopleurine (8) and antofine (9) via directed ortho metallation of the common phenanthrene (1) are described (Scheme 2). The utility of this strategy as a new N-heteroring annelation method (Scheme 1) is illustrated by the preparation of other aromatic ring-fused quinolizidine (12,15) and indolizidine (18,21) systems. A Mg for Li transmetallation, crucial for the synthesis of 13 and of potential broader
[EN] SUBSTITUTED ISOXAZOLES AS FUNGICIDES<br/>[FR] ISOXAZOLES SUBSTITUES EN TANT QUE FONGICIDES
申请人:CROPSOLUTION INC
公开号:WO2006031631A1
公开(公告)日:2006-03-23
The present invention provides compounds of formula I: (I) along with methods of making the same, compositions thereof, and methods of use thereof, particularly methods of use as fungicides.
The present invention provides compounds of formula I:
along with methods of making the same, compostions thereof, and methods of use thereof, particularly methods of use as fungicides.
The present invention provides compounds of formula I: (I) along with methods of making the same, compositions thereof, and methods of use thereof, particularly methods of use as fungicides.
The present invention provides compounds of formula I:
along with methods of making the same, compositions thereof, and methods of use thereof, particularly methods of use as fungicides.