摘要:
The invention provides a process for the preparation of phosphorothioic dichlorides characterised by reacting a compound of the formula RCHO, wherein R is an alkyl or haloalkyl moiety, with PCl₃ and sulfur monochloride in the presence of a catalytic amount of chloride ion in the liquid phase and under anhydrous conditions to produce a compound of formula RCHClOP(S)Cl₂.
摘要:
The invention provides a process for the preparation of phosphorothioic dichlorides characterised by reacting a compound of the formula RCHO, wherein R is an alkyl or haloalkyl moiety, with PCl₃ and sulfur monochloride in the presence of a catalytic amount of chloride ion in the liquid phase and under anhydrous conditions to produce a compound of formula RCHClOP(S)Cl₂.
wherein X is halogen, OM in which M is an alkali metal, an alkaline earth metal, silver or ammonium cation, OH or OR 3 in which R 3 is an alkyl or alkoxyalkyl group containing from 1 to 10 carbon atoms; R is an alkyl group containing from 2 to 4 carbon atoms; R is alkyl, alkenyl, optionally substituted phenyl or R 1 and R 2 when taken together with the carbon atom to which they are attached from a cyclic hydrocarbyl group, are useful as herbicides and plant regulators.
摘要翻译:式CHEM的化合物,其中X是卤素,OM是其中M是碱金属,碱土金属,银或铵阳离子,OH或OR 3,其中R 3是含有烷基或烷氧基烷基的化合物 1至10个碳原子; R是含有2至4个碳原子的烷基; R 2是烷基,烯基,任选取代的苯基或R 1和R 2与它们与环状烃基连接的碳原子一起用作除草剂和植物调节剂。
摘要:
Compounds of the general formula in which R is a hydrogen atom, a methyl group or an ethyl group; R' is a methyl, ethyl, monochloromethyl or monobromomethyl group; R 2 is a methyl or ethyl group; or R' and R 2 together with the carbon atom to which they are attached form a cyclopropyl group; and each of R 3 and R 4 independently is an alkyl, alkoxy, monoalkylamino or dialkylamino group, in which the or each alkyl moiety has 1 to 4 carbon atoms; provided that if R' represents a monochloromethyl or monobromomethyl group, then R represents a methyl or ethyl group; have useful pesticidal properties.
摘要:
The invention relates to an insecticidally-active polysaccharide which is the product formed by reaction of tetrahydro-2-nitromethylene-2H-1,3-thiazine with an oxidized polysaccharide which is substantially free from or contains only a minor quantity of carboxyl moieties. The polysaccharide product increases the photochemical stability of the thiazine compound and thus increases its pesticidal usefulness.
摘要:
Compounds of the general formula in which R is a hydrogen atom, a methyl group or an ethyl group; R' is a methyl, ethyl, monochloromethyl or monobromomethyl group; R 2 is a methyl or ethyl group; or R' and R 2 together with the carbon atom to which they are attached form a cyclopropyl group; and each of R 3 and R 4 independently is an alkyl, alkoxy, monoalkylamino or dialkylamino group, in which the or each alkyl moiety has 1 to 4 carbon atoms; provided that if R' represents a monochloromethyl or monobromomethyl group, then R represents a methyl or ethyl group; have useful pesticidal properties.
摘要翻译:其中R是氢原子,甲基或乙基的通式的化合物; R 1是甲基,乙基,一氯甲基或一溴甲基; R 2是甲基或乙基; 或R 1和R 2与它们所连接的碳原子一起形成环丙基; R 3和R 4各自独立地是烷基,烷氧基,单烷基氨基或二烷基氨基,其中每个烷基部分具有1至4个碳原子; 条件是如果R 1表示一氯甲基或一溴甲基,则R表示甲基或乙基; 具有有用的杀虫特性。