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.
An iodoxybenzoic acid-mediated selected oxidative cyclization of N-hydroxyalkyl enamines was developed. Through this strategy, a variety of 2,3-disubstituted pyrroles and pyridines were produced in good selectivity involving oxidation of alcohol, followed by condensation of aldehyde and α-C of enamines. Furthermore, this metal-free method has several advantages, including the use of environmentally
This invention is directed to a method for the control of phytopathogenic fungi by contacting the same with a cyano- or nitroarylpyrrole compound, or by applying said pyrrole compound to the foliage of a plant susceptible to disease caused by said pathogens.
Novel and convenient routes to substituted pyrroles and imidazoles
作者:Alan R. Katritzky、Lie Zhu、Hengyuan Lang、Olga Denisko、Zuoquan Wang
DOI:10.1016/0040-4020(95)00851-x
日期:1995.11
pyrroles. Lithiaiion of 6 followed by reactions with imines gives cyclized 4,5-dihydroimidazoles 14 which upon further treatment with ZnBr2 or direct refluxing in toluene yield the 1,25-trisubstituted imidazoles 15 in good yields.
One-Pot Synthesis of 3-Substituted 2-Arylpyrrole in Aqueous Media via Addition–Annulation of Arylboronic Acid and Substituted Aliphatic Nitriles
作者:Md Yousuf、Susanta Adhikari
DOI:10.1021/acs.orglett.7b00490
日期:2017.5.5
Pd(II)-catalyzed C–C coupling reactions between substituted aliphatic nitriles and arylboronic acids followed by in situ cyclodehydration have been employed for the first time to synthesize a wide variety of 3-substituted 2-aryl-1H-pyrroles in aqueous acetic acid. This one-pot synthesis is green, and it conforms to atom economy. The structures of two representative pyrroles, 3k and 5f, were confirmed