Abstract:
A geometrical isomer of an acrylonitrile compound represented by formula (I) or of a salt of the compound; or a mixture of the isomer [wherein T is phenyl or pyridyl each substituted by R2; Q is phenyl, thienyl, pyridyl, or benzyl each optionally substituted by R3; R1 is -C(=O)R4 or -C(=S)R4; and R4 is optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cycloalkyl, cycloalkyloxy, cycloalkylthio, -N(R5)R6, phenyl, phenoxy, phenylthio, benzyl, benzyloxy, benzylthio, -J, -O-J, or -S-J]. The geometrical isomer has a longer retention time when analyzed by reversed-phase liquid chromatography in which a packing comprising silica having chemically bonded thereto an alkyl selected among trimethyl, octyl, and octadecyl is used as the stationary phase and a polar solvent selected among water, methanol, and acetonitrile is used as the mobile phase. The geometrical-isomer mixture comprises the geometrical isomer in a larger proportion.
Abstract:
The invention relates to new methoximinophenylacetic acid amides of formula (I), wherein R represents alkylthio, halogenalkylthio, optionally substituted arylthio, alkoxycarbonylthio, alkylthiocarbonyl, -S-Y, -S-N(R R ), -CO-N(R R ), -CN, -CH2-O-R , -PO(OR )R , -PS(OR )R and A, O, W, Y, Z, L -L and R -R have the meaning given in the description. The invention also relates to a method for preparing said amides and for using them as fungicides.
Abstract:
A free radical polymerization process suitable for synthesizing polymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low polydispersity and predictable specific polymer architecture amd molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
Abstract:
A method for making a vinyl carbonate represented by the formula (I): CH2=CHOC(O)X1R1, wherein X1 is oxygen or sulfur and R1 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group comprises: (a) reacting a compound represented by the formula (II): X2C(O)X1R1, wherein X2 is a halogen other than fluorine, with a compound represented by the formula (III): M1-F, wherein M1 is selected from a Group IA metal, in the presence of a first phase transfer catalyst and a first organic solvent, to form a compound represented by the formula (IV): FC(O)X1R1; and (b) reacting a compound represented by the formula (IV) with a compound represented by the formula (V): CH2=CHOSi(R2)3, wherein R2 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl olefinic, vinyl, or cycloaliphatic group, or any combination thereof, in the presence of a metal salt represented by the formula M2-F wherein M2 is a Group IA metal, a second phase transfer catalyst, and a second organic solvent, to form the compound represented by formula (I).
Abstract:
A method of preparing a compound of formula (I) where R , R , R , R and R are independently selected from hydrogen or specified substitutents, X is -O-, -S-, -NR -, -C=N-, -C=N-O-, -NR -NR -, where R , R and R are independently selected from hydrogen or alkyl; and R is an alkyl; which process comprises reacting a compound of formula (II) with a compound of formula (III) where R is as defined in relation to formula (I) and Y is a leaving group other than a group SR where R is CH2COOH or C1-4alkyl. Compounds of formula (III) are suitably prepared in situ by a method which forms a further aspect of the invention.
Abstract translation:制备式(I)化合物的方法,其中R 1,R 2,R 3,R 4和R 5独立地选自氢或指定的取代基,X是-O- ,-S - , - NR 7 - , - C = N - , - C = NO - , - NR 8 -NR 9 - ,其中R 7,R 8和R 9 >独立地选自氢或烷基; 和R 6是烷基; 该方法包括使式(II)的化合物与式(III)化合物反应,其中R 6如关于式(I)所定义,Y是除SR x之外的离去基团,其中R X是CH 2 COOH或C 1-4烷基。 式(III)的化合物通过形成本发明的另一方面的方法适当地制备。
Abstract:
Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
Abstract:
Addition of phosphine ligands can produce high yields of tetraphenoxymethane, TPM, and diphenylcarbonate, DPC, in short reaction times and improved reaction rates by a copper-induced condensation of phenol and carbon disulfide, CS2. Either aromatic or aliphatic substituted phosphine ligands can be employed. The copper (I) oxide utilization is significantly improved in reactions containing phosphine ligands, such that yields exceeding 100 % tetraphenoxymethane are observed. Some of the sulfur-containing byproduct is transferred to the phosphine in the form of phosphine sulfide.
Abstract:
Novel compounds useful as active ingredients of pesticides are disclosed. Acrylonitrile compounds of formula (I) or their salts, wherein Q is Qa, Qb, Qc or Qd, Y is =C(R4)- or =N-, R1 is alkyl, haloalkyl, etc., each of R2 and R3 is halogen, alkyl which may be substituted, alkenyl which may be substituted, etc., R4 is hydrogen, halogen, alkyl or haloalkyl, l is from 1 to 4, m is from 0 to 5, n is from 0 to 3, q is from 0 to 4, when 1 is 2 or more, a plurality of R2 may be the same or different, when each of m, n and q is 2 or more, a plurality of R3 may be the same or different.