Method of and bait compositions for controlling mollusks
申请人:American Cyanamid Company
公开号:US04929634A1
公开(公告)日:1990-05-29
This invention relates to methods of controlling mollusks with arylpyrrole compounds and to bait compositions containing a molluscicidally effective amount of an arylpyrrole compound.
Arylpyrrole insecticidal acaricidal and nematicidal agents and methods
申请人:American Cyanamid Company
公开号:US05010098A1
公开(公告)日:1991-04-23
This invention is directed to certain novel insecticidal, acaricidal and nematicidal arylpyrrole agents and a method for controlling insects, acarids and nematodes therewith. The invention also is directed to a method for protecting growing plants from insect, acarid and nematode attack by applying to said plants or the soil in which they are growing, an insecticidally, acaricidally or nematicidally effective amount of a novel arylpyrrole compound. The present invention further is directed to a method for the preparation of the arylpyrrole compounds.
This invention provides novel .alpha.-[2,2-di(C.sub.1 -C.sub.4 alkoxy)ethylamino]-.beta.-cyanostyrene and .alpha.-[2,2-di(C.sub.1 -C.sub.4 alkoxy)ethylamino]-.beta.-nitrostyrene compounds that are useful for the preparation of pesticidal arylpyrroles. The invention also provides a method for the preparation of the above-said .beta.-cyanostyrene and .beta.-nitrostyrene compounds.
Pyrrole as a Directing Group: Regioselective Pd(II)-Catalyzed Alkylation and Benzylation at the Benzene Core of 2-Phenylpyrroles
作者:Johannes M. Wahl、Alexander Pöthig、Thorsten Bach
DOI:10.1021/acs.orglett.6b00141
日期:2016.2.19
Pyrrole has been employed for the first time as a directing group in the Pd(II)-catalyzed ortho-functionalization of C(sp2)–Hbonds. A variety of substituted 2-phenylpyrroles were successfully methylated, alkylated, or benzylated in the ortho-position of the benzene ring, yielding the respective 2-substituted pyrrol-2-yl benzenes (36 examples, 51–93% yield). Neither additives nor additional ligands
Production of electrically conductive polypyrrole of enhanced stability by treating a liquid pyrrole with a solution of a strong oxidant, capable of oxidizing pyrrole to a pyrrole polymer, and oxidizing the pyrrole by such strong oxidant in the presence of a relatively large organic dopant anion, and precipitating a conductive polypyrrole. The strong oxidant, e.g., Fe³⁺ ion, and dopant anion, which can be an alkyl or aryl sulfonate, e.g., methylbenzenesulfonate, or a perfluorinated carboxylate, e.g., trifluoroacetate, anion, can be derived from a single compound, e.g.,
the anion serving as dopant for the polypyrrole.