A Novel and Efficient Method for the Preparation of α-Hydroxyimino Carbonyl Compounds from α,β-Unsaturated Carbonyl Compounds with Butyl Nitrite and Phenylsilane Catalyzed by a Cobalt(II) Complex
作者:Koji Kato、Teruaki Mukaiyama
DOI:10.1246/bcsj.64.2948
日期:1991.10
Various α,β-unsaturated carbonylcompounds, such as α,β-unsaturated esters, α,β-unsaturated ketones, α,β-unsaturated nitriles, and α,β-unsaturated amides, were directly converted to the corresponding a-hydroxyimino carbonylcompounds in high yields on treatment with butyl nitrite and phenylsilane in the presence of a catalytic amount of N,N′-bis(2-ethoxycarbonyl-3-oxobutylidene)ethylenediaminatocobalt(II)
α,β-不饱和酯、α,β-不饱和酮、α,β-不饱和腈、α,β-不饱和酰胺等多种α,β-不饱和羰基化合物直接转化为相应的α-羟基亚氨基羰基在温和条件下,在催化量的 N,N'-双(2-乙氧基羰基-3-氧代丁二烯)乙二氨基钴 (II) 配合物存在下,用亚硝酸丁酯和苯基硅烷处理高产率的化合物。
A Novel Method for the Preparation of 2-Hydroxyiminocarboxylic Acid Esters. Cobalt(II) Catalyzed α-Oximation of α,β-Unsaturated Esters with Butyl Nitrite and Phenylsilane
作者:Koji Kato、Teruaki Mukaiyama
DOI:10.1246/cl.1990.1917
日期:1990.10
Various α,β-unsaturated esters are directly converted to the corresponding 2-hydroxyiminocarboxylic acid esters with butyl nitrite and phenylsilane in high yields by use of N,N′-bis(2-ethoxycarbonyl-3-oxobutylidene)ethylenediaminato cobalt(II) complex as catalyst under mild condition.
COMPOSITION FOR REGULATING PLANT GROWTH, METHOD FOR TREATING PLANTS THEREWITH, AND ACTIVE INGREDIENT THEREOF
申请人:Gorbunov Sergei Valeryevich
公开号:US20190119193A1
公开(公告)日:2019-04-25
A composition for regulating plant growth, the active ingredient of which is an ester of oxaloacetic acid or a salt thereof, or derivatives thereof, wherein the ester of oxaloacetic acid has the formula set forth below, where R
1
and R
2
are independently selected from a series of C
1
-C
18
alkyl groups, and wherein the content of the active ingredient corresponds to a concentration of from 10
−11
M to 10
−3
M. The active ingredients and compositions for regulating plant growth allow for treating plants in order to stimulate the growth thereof and achieve such advantages as increased yields, improved plant quality, improved nutrient absorption and enhanced stress resistance, while allowing such advantages to be achieved using a relatively small amount of an active ingredient(s) which is/are biodegradable and environmentally friendly.