摘要:
A method for preparing 2,3-dichloropyridine is disclosed in which 3-amino-2-chloropyridine is contacted with an alkali metal nitrite in the presence of aqueous hydrochloric acid to form a diazonium salt; and the diazonium salt is subsequently decomposed in the presence of copper catalyst wherein at least about 50% of the copper is the copper(II) oxidation state.
摘要:
The compositions 3-alkylated-5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol and 3,3′-dialkylated-5,5′, 6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol are disclosed, as well as various processes for making them, all involving the alkylation of 5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol.
摘要:
Arthropodicidal oxazoline derivatives and processes and intermediates for the preparation thereof are disclosed. The intermediates are racemic or enantiomerically enriched compounds having formula (I), wherein R and n are disclosed in the specification. ##STR1##
摘要:
A method for making arthropodicidal oxadiazines and intermediates which are racemic or enantiomerically enriched at their chiral center, the method for making the oxadiazines comprising reaction of an intermediate selected from ##STR1## wherein: R.sup.1 is F, Cl, or C.sub.1 -C.sub.3 fluoroalkoxy,R.sup.2 is C.sub.1 -C.sub.3 alkyl, andR.sup.4 is H or CO.sub.2 CH.sub.2 (C.sub.6 H.sub.5).as well as certain selected intermediates including those depicted above, and methods of making them.
摘要:
A method for making arthropodicidal oxadiazines and intermediates which are racemic or enantiomerically enriched at their chiral center, the method for making the oxadiazines comprising reaction of an intermediate selected from ##STR1## wherein: R.sup.1 is F, Cl, or C.sub.1 -C.sub.3 fluroalkoxy,R.sup.2 is C.sub.1 -C.sub.3 alkyl, andR.sup.4 is H or CO.sub.2 CH.sub.2 (C.sub.6 H.sub.5).as well as certain selected intermediates including those depicted above, and methods of making them.
摘要:
This invention includes compounds of Formula II and IV and a process for preparing Formula I compounds by first preparing the compounds of Formula IV and then further reacting to form the compounds of Formula II and further reacting to prepare the compounds of Formula I wherein Q, Z, R.sup.2 are as defined within. ##STR1##
摘要翻译:PCT No.PCT / US94 / 02497 Sec。 371 1995年9月21日第 102(e)1995年9月21日PCT PCT 1994年3月8日PCT公布。 公开号WO94 / 22828 日期:1994年10月13日本发明包括式II和IV的化合物和通过首先制备式IV化合物然后进一步反应形成式II化合物并进一步制备式I化合物的方法, 其中Q,Z,R 2如上所定义。 II IV
摘要:
Arthropodicidal pyrazoline, pyrazolidine and hydrazine compounds, including all their geometric and stereoisomers, agriculturally suitable salts thereof and compositions containing them; and a method for controlling arthropods employing said compounds which are: ##STR1## wherein Q, X, X.sup.1, Y and G are as defined in the text.
摘要:
Certain substituted pyrimidine sulfonylureas, such as 3-[[[(4-dimethoxymethyl)-6-methylpyrimidin-2-yl]aminocarbonyl]aminosulfonyl]-2-thiophenecarboxylic acid, methyl ester, are selective pre-emergence and/or post-emergence herbicides.