摘要:
The present invention is directed to a process for preparing a compound having the formula: wherein R is a range of organic groups and X is a leaving group. The process may include reacting a compound of the formula with a water-removing reagent. Also, when X is a halogen, the process may include reacting a compound of the formula with a halogenating agent or a sulfonylating agent. Alternatively, when X is a halogen, the process may be carried out by reacting a compound of the formula IV where R2 and R3 are defined organic groups with a compound of the formula halogen-C(—O)—O—C1 -C8alkyl, halogen-C(—O)—O-aryl or halogen-C(—O)—O-benzyl.
摘要:
The present disclosure is directed to a process for the preparation of a compound having the formula: wherein R is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted C3-C6cycloalkyl, unsubstituted or substituted aryl, unsubstituted or substituted heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; and X is a selected leaving group that is not halogen, and may specifically be methylsulfonate, trifluoromethylsulfonate, and p-toluenesulfonate. These compounds are valuable intermediates useful in the synthesis of compounds having pesticidal activity. Generally, the process includes reacting a water-removing reagent, with a compound having the formula Water-removing agents that may be used include thionyl chloride (SOCl2), thionyl bromide (SOBr2), phosphorus oxychloride (POCl3), phosphorus oxybromide (POBr3), phosphorus pentachloride or a sulfonic acid chloride or bromide.
摘要:
A process for the preparation of a compound of the formula and, where applicable, its E/Z-isomers, mixtures of E/Z-isomers and/or tautomers and acid addition products thereof, in each case in free form or in salt form, wherein: R is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted C3-C6cycloalkyl, unsubstituted or substituted aryl, unsubstituted or substituted heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, unsubstituted or substituted C2-C4alkenyl, unsubstituted or substituted C2-C4alkynyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl; and X is a leaving group; The process comprises reacting a compound of the formula: with a halogenating agent or a sulfonylating agent. Alternatively, when X is a selected halogen, the process can comprise reacting a compound of the formula with a compound having a formula selected from the group consisting of halogen-C(═O)—O—C1-C8alkyl; halogen-C(═O)—O-aryl; and halogen-C(═O)—O-benzyl.
摘要:
What is described are a compound of the formula in which R1 is C1-C12alkyl, C3-C8cycloalkyl or C2-C12alkenyl; R2 is H, unsubstituted or mono- to pentasubstituted C1-C12alkyl or unsubstituted or mono-to pentasubstituted C1-C12alkenyl; R3 is C2-C12alkyl, mono- to pentasubstituted C1-C12alkyl, unsubstituted or mono- to pentasubstituted C1-C6alkoxy-C1-C6alkyl, unsubstituted or mono- to pentasubstituted C3-C12cycloalkyl, C2-C12alkenyl, C2-C12alkynyl; or R2 and R3 together are an alkylene or alkenylene bridge; with the proviso that R1 is not sec-butyl or isopropyl if R2 is H and R3 is 2-hydroxyethyl, isopropyl, n-octyl or benzyl;or, if appropriate, in E/Z isomer, an E/Z isomer mixture and/or a tautomer thereof; a process for preparing and using these compounds and their tautomers; pesticides whose active compound is selected from these compounds and their tautomers; and a process for preparing these compounds and compositions, and the use of these compounds and compositions.
摘要:
Derivatives of milbemycins D, A.sub.3 and A.sub.4 and of the corresponding sec-butyl compound have a halogen atom at the 13-position; at the 5-position, they have an oxygen (keto) atom, an oxime group or a substituted oxime group. They may be prepared from known compounds by any appropriate combination of halogenation, ketonization and oximation.
摘要:
Compounds of formula (I) wherein the substituents are as defined in claim 1, and the agrochemically acceptable salts and all stereoisomers and tautomeric forms of the compounds of formula I can be used as agrochemical active ingredients and can be prepared in a manner known per se.
摘要:
Compounds having a 16-membered macrolide ring, and related to the milbemycins and avermectins, with substituents at positions 5, 13, 25 and optionally also 23, have acaricidal, insecticidal and anthelmintic properties. They are useful for treating various pests in plants and animals.
摘要:
Compounds of formula (I) wherein the substituents are as defined in claim 1, and the agrochemically acceptable salts and all stereoisomers and tautomeric forms of the compounds of formula I can be used as agrochemical active ingredients and can be prepared in a manner known per se.
摘要:
Compounds having a 16-membered macrolide ring, and related to the milbemycins and avermectins, with substituents at positions 5.13, 25 and optionally also 23, have acaricidal, insecticidal and anthelmintic properties. They are useful for treating various pests in plants and animals.