Preparation of α-Imino Aldehydes by [1,3]-Rearrangements of O-Alkenyl Oximes
摘要:
The synthesis of alpha-imino aldehydes has been achieved through the thermal [1,3]-rearrangement of O-alkenyl benzophenone oximes. A copper. mediated C-O bond coupling between benzophenone oxime and alkenyl boronic acids provides facile access to the required O-alkenyl oximes and a Horner-Wadsworth-Emmons olefination can be applied to the a-imino aldehyde products to give gamma-imino-alpha,beta-unsaturated esters. The scope of the method is described and mechanistic experiments are discussed.
Preparation of α-Oxygenated Ketones by the Dioxygenation of Alkenyl Boronic Acids
作者:Aditi S. Patil、Dong-Liang Mo、Heng-Yen Wang、Daniel S. Mueller、Laura L. Anderson
DOI:10.1002/anie.201202704
日期:2012.7.27
Two in two: Dioxygenation of alkenylboronicacids has been achieved with N‐hydroxyphthalimide. The two‐step process involves etherification of an alkenylboronicacid with N‐hydroxyphthalimide followed by a [3,3] rearrangement. The dioxygenated product can then be hydrolyzed to form either the corresponding α‐hydroxy ketone or the α‐benzoyloxy ketone.
CYCLOPROPYL ETHYLENE COMPOUND AND ARTHROPOD PEST CONTROL COMPOSITION CONTAINING SAME
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20210032190A1
公开(公告)日:2021-02-04
The present invention provides a compound that have excellent harmful arthropod controlling effects, the compounds being represented by formula (I) [wherein R
1
represents a hydrogen atom etc., and R
21
, R
22
, R
31
and R
32
are identical to or different from each other and each represents a hydrogen atom etc., Q
1
, Q
2
, Q
3
, Q
4
are identical to or different from each other and each represents CH etc.], as well as a composition comprising the same, and a method for controlling harmful arthropod comprising applying the same.