摘要:
The invention relates to a preparation process for the compound (I) or a salt thereof where Q, X*, Y, Z, R, R1, R2 and R3 are as defined in claim 1, which comprises a) monoesterifying a compound (II) where Hal=a halogen atom, giving (III), b) either b1) ammonolysing and phosgenating this compound to give (V) or b2) converting this compound with cyanate into (V) and c) converting the resulting compound (V) with the aminoheterocycle H2N-Het (Het=heterocycle as in (I)) into the compound (I) or a salt thereof. Some compounds (II) and some intermediates (VIII), stabilized with N-heteroaromatic compounds, of the compounds (V) are novel. The compounds (II) can be obtained from the corresponding sulfobenzoic acids by reaction with acid halides of sulfur or phosphorus in nonpolar organic solvents.
摘要:
The invention relates to the preparation of compounds (I) in which A=H or acyl and R1, R21, R3, R, n, X, Y and Z are as defined in claim 1 by halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III) a) ammonolysis of (III) to (IV), reduction of the nitro group and reaction with carbamate (salts) (VI) of the formula Ar—OCO—N(M)—Het, where Ar=phenyl, M=H or cation and Het=heterocycle from formula (I), to give compounds (I) (A=H), or b) ammonolysis of (III) to (IV), reaction with carbamate (salt) (VI) and reduction of resulting compounds (VII) at the NO2 group to give compounds (I) (A=H), or c) reaction of (III) with cyanates and amines (VIII) of the formula HNR3—Het and reduction of the resulting compound (VII) at the NO2 group to give compounds (I) (A=H) and optional acylation if A is to be other than H. Compounds of the formulae (I) (A=H), (III), (IV), (V), (VI) (M=cation) and (VII) are novel.
摘要:
The invention relates to novel N-alkoxycinnamamides of the formula I ##STR1## in which R.sup.1 and R.sup.2 are alkyl, alkenyl, alkynyl, alkoxyalkyl, alkoxyalkenyl, alkoxyalkynyl, trialkylsilylalkynyl or arylalkyl, aryl optionally being substituted by alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, halogen, cyano, nitro, alkylsulfonyl, phenyl and/or phenoxy, to processes for their preparation, to fungicidal compositions containing them, and to their use as fungicides.
摘要:
The invention relates to the preparation of compounds (I) in which A=H or acyl and R1, R2, R3, R, n, X, Y and Z are as defined in claim 1 by halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III) R*═OH, R**═NR1R2 (II) R*═NR1R2, R**═Cl (III) R*═NR1R2, R**═NH2 (IV) a) ammonolysis of (III) to (IV), reduction of the nitro group and reaction with carbamate (salts) (VI) of the formula Ar—OCO—N(M)-Het, where Ar=phenyl, M=H or cation and Het=heterocycle from formula (I), to give compounds (I) (A=H), or b) ammonolysis of (III) to (IV), reaction with carbamate (salt) (VI) and reduction of resulting compounds (VII) at the NO2 group to give compounds (I) (A=H), or c) reaction of (III) with cyanates and amines (V) of the formula HNR3−Het and reduction of the resulting compound (VII) at the NO2 group to give compounds (I) (A=H) and optional acylation if A is to be other than H. Compounds of the formulae (I) (A=H), (III), (IV), (V), (VI) (M=cation) and (VII) are novel.
摘要:
Compounds of the formula I ##STR1## in which R.sup.1 is H, alkyl, alkenyl, alkynyl, haloalkyl, alkoxycarbonyl, alkoxyalkyl, phenyl, benzyl or phenoxyalkyl, it being possible for the three latter radicals to be substituted in the phenyl moiety;R.sup.2 is H, alkyl, alkenyl, alkynyl, haloalkyl or alkoxycarbonyl;R.sup.3 is H, alkyl, alkenyl, alkynyl, haloalkyl, alkoxycarbonyl, phenyl, phenoxy, benzyl, it being possible for the three latter radicals to be substituted, or alkoxy; andR.sup.4 is H, alkyl, alkenyl, alkynyl, haloalkyl or alkoxycarbonyl;orR.sup.1 together with R.sup.2 is a saturated chain, and the remaining radicals are as defined above;orR.sup.1 together with R.sup.2 is a chain of the formula --CH.dbd.CH--CH.dbd.CH--, which may be substituted, and the remaining radicals are as defined above;orR.sup.3 together with R.sup.4 is a chain of the formula --CH.dbd.CH--CH.dbd.CH--, which may be substituted, and the remaining radicals are as defined above;are valuable intermediates in the preparation of pharmaceuticals and crop protection agents.The process according to the invention yields compounds of the formula I by reacting a substituted 1-alkoxypyridinium salt of the formula II, ##STR2## in which R.sup.1 to R.sup.4 have the same meaning as in formula I andR.sup.5 is alkyl, alkenyl, alkynyl, benzyl or trialkylsilyl andX is a leaving group;together with a cyanide of the formula IIIM(CN).sub.m (III)in whichM is alkali metal, alkaline earth metal or copper andm is 1 or 2,in a polar, aprotic solvent or mixture of solvents.
摘要:
The invention relates to the preparation of compounds (I) in which A═H or acyl and R1, R2, R3, R, n, X, Y and Z are as defined in claim 1 by halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III) a) ammonolysis of (III) to (IV), reduction of the nitro group and reaction with carbamate (salts) (VI) of the formula Ar—OCO—N(M)-Het, where Ar=phenyl, M═H or cation and Het=heterocycle from formula (I), to give compounds (I) (A═H), or b) ammonolysis of (III) to (IV), reaction with carbamate (salt) (VI) and reduction of resulting compounds (VII) at the NO2 group to give compounds (I) (A═H), or c) reaction of (III) with cyanates and amines (VII) of the formula HNR3-Het and reduction of the resulting compound (VII) at the NO2 group to give compounds (I) (A═H) and optional acylation if A is to be other than H. Compounds of the formulae (I) (A═H), (III), (IV), (V), (VI) (M=cation) and (VII) are novel.
摘要:
Compounds (I) in which Ar is (substituted) arylene and Nuc is the radical of a nucleophile Nuc-H and which are valuable intermediates for pharmaceuticals, crop protection products and colorantsHO.sub.3 S--Ar--CO--NUC (I)can be prepared according to the invention by reacting an internal diazonium salt of the formula (II).sup..crclbar. O.sub.3 S--Ar--N.sub.2.sup..sym.with CO in the presence of a metal catalyst of group VIII of the Periodic System or Cu and Nuc-H or a salt thereof.
摘要:
Pyrimidine derivatives of the formula I ##STR1## in which the variables are herein below described in the specification. R.sup.3, R.sup.4 and R.sup.5 optionally together with the radical R.sup.3 are a component of a maximally unsaturated .lambda.-membered ring where .lambda. is 3 to 8, two radicals R.sup.6 to R.sup.9 together may form a component of an unsaturated or saturated m-membered ring where m is 5 or 6,k is 0, 1 or 2,n is 1 or 2and the addition salts thereof, their preparation, compositions containing them, and their use in the control of harmful fungi.
摘要:
The present invention relates to a compound of the formula (I) wherein R1 is an unsubstituted or substituted hydrocarbon radical having a total of 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms, R2 is an unsubstituted or substituted hydrocarbon radical having a total of 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms, or the group NR1R2 is a heterocyclic ring having 3 to 8 ring atoms which is unsubstituted or substituted and contains the nitrogen atom of the group NR1R2 as ring heteroatom and may also contain one or two further ring heteroatoms from the group consisting of N, O and S, and Q is H or a cation. The compounds of the present invention can advantageously be used for the preparation of sulfonylureas and their precursors such as sulfochlorides or sulfonamides.
摘要:
The invention relates to a preparation process for a compound (I) or a salt thereof, in which Q, X*, Y, Z, R, R1, R2 and R3 are as defined in claim 1, which comprises a) ammonolyzing a comp. (II) in which Hal=halogen atom to give (III), pref. (a1) carrying out the reaction in an organic solvent mixture (org. solv. mixture) comprising (1) opt. halogenated aromatic hydrocarbons and (2) polar aprotic solvents, in a weight ratio of solv. (1): solv. (2) of 20:1 to 1:1, (b) phosgenating the comp. (III) with phenylsulfonyl isocyanate of the formula (IV), pref. (b1) in the case X*=halogen, carrying out the reaction with phosgene in an org. solv. in the presence of isocyanates R′-NCO as catalyst, where R′=(subst.) hydrocarbon, with or without addition of an amine base, (c) reacting the resulting compound (IV) in org. solv. with the aminoheterocycle H2N-Het (Het=heterocycle as in (I)) to give the comp. (I) or a salt thereof, pref. (c1) carrying out the reaction in a solv. mixture of opt. halogenated arom. hydrocarbon having a b.p. of more than 110° C. and a polar aprotic solv., where at least one of the preferred partial steps (a1) to (c1) is carried out in the process.