Patents
Patents for C07C 241 - Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes (2,288)
04/1978
04/04/1978US4082787 Thermal dehydrochlorination of methyl carbamyl chloride
04/04/1978US4082773 Antifibrillatory agents, disinfectants, water softeners
03/1978
03/28/1978US4081472 Process for preparation of aromatic isocyanates
03/14/1978US4079080 Preparation of ketazine and catalyst therefor
02/1978
02/28/1978US4076843 5,6,7,8-Tetrahydronaphthalene hypotensive agents
02/28/1978CA1027063A1 Separation process of cetazines of raw synthesis mixes
02/14/1978US4074060 Auramine salts
01/1978
01/31/1978US4071633 Fungicidal N-trichloroacetyl-N'-chlorobenzoylhydrazine derivatives
01/17/1978US4069377 Polymerization of ethylenically unsaturated monomers employing secondary-aliphatic α-substituted azoalkanes
01/17/1978US4069238 Manufacture of aliphatic isocyanates
01/10/1978US4068065 Compounds and process
01/10/1978US4067820 Phosphorous containing
01/03/1978US4066698 Process for the manufacture of organic hydrazines
01/03/1978US4066665 2-Alkylamino-α-phenyl-1-cyclohexene-1-methyleneimine, its salts and preparation
01/03/1978CA1023743A1 Preparation process for hydrazine compounds
12/1977
12/27/1977US4065362 Purification of organic isocyanates
12/20/1977US4064349 Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use
12/20/1977US4064151 Isocyanate intermediates
12/13/1977US4062934 X-ray contrast media
11/1977
11/22/1977US4059610 Process for preparing isocyanic acid derivatives
11/08/1977US4057556 Antiallergens
11/01/1977US4056547 Process for the preparation of organic isocyanate compounds
11/01/1977US4056469 Purification of waste water from hydrazine production
08/1977
08/30/1977US4045486 From cyclohexanone and a primary aryl amine
08/30/1977US4045462 Bicyclic triisocyanates
08/23/1977US4043976 Stabilized olefin polymer composition
08/23/1977US4043818 Process for hardening photographic layers with carbodiimide compounds containing sulphobetaine groups
08/02/1977US4039580 Process for preparing di(aminophenyl)methanes
08/02/1977US4039521 Aromatic diazonium bis(fluorinated alkylsulfonyl) methides
06/1977
06/21/1977US4031026 Polyurethane intermediates
06/14/1977US4029686 Production of isocyanates
05/1977
05/31/1977US4026943 Enriching trans,trans-isomer content of di-(p-aminocyclohexyl)-methane by treating with trans,trans-isomer of its bis-benzaldimine
05/24/1977US4025647 Salicylanilide derivatives having anthelmintic activity
05/24/1977US4025543 Process for the preparation of 1,4-naphthodinitrile
05/24/1977US4025502 Secondary-aliphatic α-substituted azoalkanes
05/10/1977US4022832 2-Aminoacetamido-α-phenylbenzylideneaminoalkanol derivatives and process for the preparation thereof
04/1977
04/26/1977US4020104 Using benzaldehyde
04/19/1977US4018751 Continuous process for aminoazobenzene
03/1977
03/29/1977US4014935 Heating an aromatic polyisocyanate in a phosphorus compound
03/22/1977US4013701 Process for the production of polyisocyanates
01/1977
01/25/1977US4005179 Working up synthesis solutions obtained in production of hydrazine
01/18/1977US4003938 Thermal decomposition of beta-naphthyl carbamates
01/18/1977US4003747 Photosensitive azide compound containing color-forming element
01/11/1977US4002733 Water resistance
01/11/1977US4002680 By reacting acyl hydrazides with carboxylic acids in the presence of thionyl chloride
12/1976
12/28/1976US4000099 Tar urethane composition
11/1976
11/30/1976US3995053 Acaricidal and insecticidal compositions
11/23/1976US3993682 Substituted phenylguanidines and processes for their preparation and use
11/23/1976US3993677 Animal growth regulators, herbicides
11/16/1976US3992368 From a hydrazone
11/09/1976US3991094 Thermal decomposition
10/1976
10/19/1976US3987108 Benzyl (benzyloxy) benzene derivatives
10/05/1976US3984392 Anisotropic
08/1976
08/31/1976US3978105 Manufacture of organic isocyanates
08/31/1976US3978049 Process for the preparation of hydrazine compounds
08/17/1976US3975425 Process for carrying out nitrosation reactions and diazotation reactions
08/10/1976US3974159 Manufacture of derivatives of malondialdehyde
08/03/1976US3972921 Synthesis of racemic 2-deutero-3-fluoro-alanine and its salts
07/1976
07/20/1976US3970460 3-tolylthio-5-alkoxy-diazonium
07/13/1976US3969389 Manufacture of aliphatic isocyanates
07/13/1976US3969388 Manufacture of alkylisocyanates
07/06/1976US3968129 Cardiovascular
06/1976
06/22/1976US3965174 Process for preparing N,N-disubstituted acid hydrazides
06/22/1976US3965097 From oxaziridine and ammonia
06/15/1976US3963710 Finely divided blocked isocyanates prepared in the presence of surfactants
06/08/1976US3962471 Indolylacetylamino acid derivatives, process for their preparation, and pharmaceutical compositions
06/08/1976US3962290 Process for n,n,n',n'-tetraarylquinone diimonium salts
06/01/1976US3960915 Pyrolysis of 5-isopropenyl-1,3,4-dioxazolinone-2
05/1976
05/25/1976US3959372 Glyoxylic acid hydrazide-2-acylhydrazone compounds
05/25/1976US3959262 Method for preparing azines
05/11/1976US3956468 Process for the preparation of carbonyldiisocyanate
05/11/1976US3956282 Ammonia, carbonyl compound, hydrogen peroxide, carboxylic ester
04/1976
04/20/1976US3952042 From an arylamine and formaldehyde
04/20/1976US3952027 1,5-diazido-2,3-cyclohexanediol, antibiotic intermediates
04/20/1976US3951964 From ammonia and a carbonyl compound
04/20/1976US3951943 Coupling process in the preparation of disazo diimides
04/06/1976US3948966 Process for preparing benzene derivatives having isocyanatomethyl group
03/1976
03/30/1976US3947587 Analgesics obtained by reacting a primary amine and an aldehyde
03/09/1976US3943152 Method for preparing azines
03/09/1976US3943132 Process for the preparation of hydrazones
03/02/1976US3941873 Process for the preparation of carbonyl diisocyanate
02/1976
02/03/1976US3936484 Production of isocyanates from substituted ureas
01/1976
01/20/1976US3933910 Process for the production of ketazines
01/20/1976US3933874 Method for preparing of β-anilino-β-hydrazinoacrylates
01/13/1976US3932357 Polyurethane lacquer composition based on isophorone diisocyanate and diamine bis-aldime
01/06/1976US3931343 Oxygen-free environment
01/06/1976US3931103 Copper inhibitors for polyolefins
01/06/1976US3930968 Process for the manufacture of phenylhydrazine
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