NOXIOUS ARTHROPOD CONTROL COMPOSITION AND HETEROCYCLIC COMPOUND
申请人:Iwakoshi Mitsuhiko
公开号:US20130090353A1
公开(公告)日:2013-04-11
A noxious arthropod controlling composition comprising a heterocyclic compound represented by the formula (1) [wherein, A
1
and A
2
represent ═C(R
6
)—, nitrogen and so on, R
1
represents a halogen and so on, R
3
and R
4
represent optionally substituted C1 to C4 chain hydrocarbon group and so on, R
5
represents a hydrogen and so on, n represents 0 or 1] as an active ingredient has an excellent effect for controlling noxious arthropods.
Regioselective Iridium-Catalyzed Asymmetric Monohydrogenation of 1,4-Dienes
作者:Jianguo Liu、Suppachai Krajangsri、Thishana Singh、Giulia De Seriis、Napasawan Chumnanvej、Haibo Wu、Pher G. Andersson
DOI:10.1021/jacs.7b06829
日期:2017.10.18
A highly efficient regio- and enantioselective monohydrogenation of 1,4-dienes has been realized using an iridium catalyst with a chiral N,P-ligand under mild conditions. The substrate scope was studied and included both unfunctionalized as well as functionalized substituents on the meta- or para-position. Substrates having substituents with functionalities such as silyl protected alcohols or ketals
Tuning Reactivity and Site Selectivity of Simple Arenes in C–H Activation: Ortho-Arylation of Anisoles via Arene–Metal π-Complexation
作者:Paolo Ricci、Katrina Krämer、Igor Larrosa
DOI:10.1021/ja510260j
日期:2014.12.31
Current approaches to achieve siteselectivity in the C–H activation of arenes involve the use of directing groups or highly electron-poor arenes. In contrast, simple arenes, such as anisole, are characterized by poor reactivity and selectivity. We report that π-complexation to a Cr(CO)3 unit enhances the reactivity of anisoles providing an unprecedented ortho-selective arylation. This mild methodology