|8053589||Imines and methods of preparing electron deficient olefins using such novel imines|
This invention relates to novel imines, some of which are in the form of ionic liquids, and a process for producing electron deficient olefins, such as 2-cyanoacrylates, using an imine, for instance such novel imines, many of which are in the form of an ionic liquid...
|6307086||Method for producing long-chain glycine-N,N-diacetic acid derivatives|
A process for preparing compounds of the formula IIb ##STR1## where R is C6 -C30 -alkyl or C6 -C30 -alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1 -C4 -alko...
|5703270||Method for preparing a vinyl compound having a hydroxy group|
A vinyl compound having a hydroxy group of the formula (1) ##STR1## wherein R is a hydrogen atom or an organic residue, X is a --CN group, a --COR0 group or a --COOR0 group and R0 is a hydrogen atom or an organic resi...
|5455369||Process for the manufacture of methyl cyanoacrylate|
A process for preparing methyl -cyanoacrylate in which methyl cyanoacetate is reacted with formaldehyde to form a polymer, which is subsequently depolymerized to the monomeric product, comprises using an ester of poly(ethylene glycol) as the solven...
|5436363||Method for making alkyl--cyanoacrylate from depolymerization of poly(alkyl--cyanoacrylate)|
A depolymerization and purification process, by which a poly(alkyl--cyanoacrylate) feed is depolymerized into high-purity cyanoacrylate monomers without the use of a high-boiling heat transfer medium such as tricresyl phosphate. The poly(alkyl-...
|4973730||Preparation of serine-N,N-diacetic acid and derivatives as complexing agents and detergents containing same|
Serine-N,N-diacetic acid and derivatives thereof are prepared in various ways and used in particular as complexing agents, bleaching agent stabilizers and builders in detergents....
|4820858||Process for the preparation of 2-(hydroxyalkyl)acrylic compounds|
The invention relates to a process for the preparation of 2-(hydroxyalkyl)acrylic compounds having the formula ##STR1## wherein X represents a --CN group, a --COOR3 group, a --COR4 group or a --CONR4 R5 gro...
|4684743||Preparation of alpha-substituted ଲ-dicarbonyl, ଲ-cyano-carbonyl and ଲ-dicyano compounds|
ଲ-Dicarbonyl, ଲ-cyanocarbonyl and ଲ-dicyano compounds I ##STR1## where R1 is an organic radical, X and Y are COOR2, --CO--R2 or --CN and R2 is an organic radical, are prepared from R1
|4654432||Preparation of 2-(hydroxymethyl)-acrylonitrile and 2-(hydroxymethyl)-acrylates|
2-(hydroxymethyl)-acrylonitrile and 2-(hydroxymethyl)-acrylates of the formula ##STR1## where X is --CN or ##STR2## and R is unsubstituted or substituted alkyl, are prepared by reacting acrylonitrile or an acrylate with hydrated formaldehyd...
|4614770||NADHCN mimics as chiral pseudocyanotransferases|
A broad class of polymers which mimic the NAD-NADHCN couple is disclosed. These polymeric pseudocyanotransferases may be used to effect asymmetric hydrocyanation of many types of carbonyl, thiocarbonyl, and imino groups in either a batch or continuous pro...
|4567004||Process for the preparation of monomethyl-substituted methylene compounds|
Monomethyl-substituted methylene compounds are obtained by reacting methylene compounds of the formula ##STR1## in which R1 and R2 independently of one another represent --CN, --CO--R3, --SO2 --R3
|4551526||Synthesis of alpha-aminonitriles|
Described is a process for preparing alpha-aminonitriles having the formula ##STR1## where R1, R2, R3 and R4 are each independently hydrogen, C1 -C20 alkyl, C3 -C12 cy...
|4328170||Process for preparing an -cyanoacrylate|
A process for producing an -cyanoacrylate which comprises reacting a cyanoacetate with formaldehyde in the presence of a catalyst and a solvent, wherein a compound having phase transfer catalytic activity is used as the catalyst....
|4054596||Carboxy and carbohydrocarbyloxy-substituted 1,1-bis(perfluoroalkylsulfonyl)propanes|
1,1-Bis(perfluoroalkylsulfonyl)propanes substituted in the three position by two to three electron-withdrawing groups, particularly perfluoroalkylsulfonyl, carboxyl, carboalkoxy or cyano are catalysts for the polymerization of aromatic epoxy resins....
The yield of alkenols is substantially improved by carrying out the reaction of olefins with formaldehyde in the presence of phenolic yield promoters. In accordance with one embodiment, alk-3-en-1-ols are produced in good yields from isobutylene and forma...
The yield of alkenols is substantially improved by carrying out the reaction of olefins with formaldehyde in the presence of selected catalysts. In accordance with one embodiment, alk-3-en-1-ols are produced in good yields from isobutylene and formaldehyd...
|3956357||Manufacture of 2-cyano-propionate esters|
A process for the manufacture of 2-cyano-propionate esters which comprises hydrogenating in the presence of an hydrogenating catalyst a mixture of a cyano-acetic ester, formaldehyde and a condensation catalyst. Typically ethyl cyano-acetate is treated wit...
Alkenols are produced in good yields by reacting olefinic compounds with formaldehyde in an aromatic reaction diluent containing bromine- or iodine-containing catalysts. In accordance with one embodiment, alk-3-en-1-ols are produced in good yields from is...
|3953490||Preparation of (3-trifluoromethylphenoxy)(4-chlorophenyl)acetonitrile|
A method for preparing 2-acetamidoethyl (3-trifluoromethylphenoxy)(4-chlorophenyl)acetate which comprises treating (3-trifluoromethylphenoxy)(4-chlorophenyl)acetonitrile with 2-acetamidoethanol in the presence of an acid to form an imino intermediate...
|3933888||Production of unsaturated acids, esters and nitriles, and catalyst therefor|
Alkanoic acids, esters of such acids, and alkyl nitriles are reacted with formaldehyde in the presence of a basic catalyst comprising pyrogenic silica to form ,ଲ-unsaturated acids, the esters of such unsaturated acids or ,ଲ-unsat...