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5505931 |
Acid cleavable compounds, their preparation and use as bifunctional acid-labile crosslinking agents
Novel compounds, their preparation and their use as bifunctional acid-labile crosslinking agents which are cleavable in an acid environment at a pH of below about 5.0 allowing for the controlled...
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5198554 |
5-(2,4-Dioxotetrahydro-3-furanylmethyl)norbornane-2,3-dicarboxylic acid anhydride and process for production thereof
A novel compound 5-(2,4-dioxotetrahydro-3-furanylmethyl)norbornane-2,3-dicarb
oxylic acid anhydride has been provided. The compound is prepared by hydrogenating...
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5149831 |
Process for producing methylnorbornene dicarboxylic acid anhydride
Methylnorbornene dicarboxylic anhydride is produced from a C 6 -C 7 fraction containing 5-methylcyclopentadiene by carrying out the reaction in the presence of a maleic anhydride and a protonic...
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5118819 |
Process for the preparation of delta-3-carene diadducts
A process for the preparation of a carene-dienophile diadduct in high yield is provided. Delta-3-carene is reacted with a Diels-Adler dienophile, preferably maleic anhydride, at a dienophile:carene...
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5041561 |
Gamma-terpinene diadducts
Diadducts of gamma-terpinene and Diels-Alder dienophiles are prepared in high yield by contacting dienophile and gamma-terpinene in a preferred molar ratio of at least about 2:1 at elevated...
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4946969 |
Process of preparing gamma-terpinene diadducts
Diadducts of gamma-terpinene and Diels-Alder dienophiles are prepared in high yield by contacting dienophile and gamma-terpinene in a preferred molar ratio of at least about 2:1 at elevated...
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4661630 |
Carboxylic acid amides and their derivatives
Described herein are novel carboxylic acid amide compounds or carboximide compounds represented by the general formula: ##STR1## wherein Z represents either the monoamido radical of an aromatic or...
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4634755 |
Method for making norbornane anhydride substituted polyorganosiloxane
A method is provided for making norbornane anhydride substituted organosiloxane by equilibrating norbornane anhydride organosiloxane with cyclopolydiorganosiloxane, organopolysiloxane and mixtures...
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4598135 |
Method for making norbornane anhydride substituted polyorganosiloxane
A method is provided for making norbornane anhydride substituted organosiloxane by equilibrating norbornane anhydride organosiloxane with cyclopolydiorganosiloxane, organopolysiloxane and mixtures...
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4409371 |
Dicyclopentadiene modified polyesteramides containing endomethylenetetrahydrophthalyl functionality and process for preparing same
Dicyclopentadiene modified polyesteramides containing endomethylenetetrahydrophthalyl functionality within the esteramide chain show improved reactivity during cure. The process for preparing the...
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4298752 |
Cycloadduct precursors of cantharidin and method
Novel cycloadducts are provided which may be formed between furan and 2,5-dihydrothiophene-3,4-dicarboxylic anhydride at elevated pressure. One of these cycloadducts is useful in a synthesis of...
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4254044 |
7-Oxabicycloheptane- and 7-oxabicycloheptene compounds
New compounds having the general formula ##STR1## are useful as cardiovascular agents, and as intermediates for the preparation of compounds having the general formula ##STR2## wherein R 1 is...
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4187236 |
7-Oxabicycloheptane compounds
New 7-oxabicycloheptane compounds which have the general formula ##STR1## wherein each R is independently hydrogen or hydroxy, at least one R being hydroxy; R 1 is hydrogen or lower alkyl; R 3 is...
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4144244 |
Perfluoroalkyl-iodo norbornane dicarboxylic acids and derivatives thereof
The compounds disclosed are of the formula ##STR1## and the anhydrides thereof wherein R f is a perfluoroalkyl group, Y is oxygen, or an amine, and R is hydrogen or alkyl. These compounds...
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4100091 |
Process and means for absorbing and releasing thermal energy by utilizing the allothopic change of endo-5-norbornene-2, 3-dicarboxylic acid anhydride with heat
Thermal energy, in particular, solar energy is absorbed and released by utilizing the allotropic change of endo-5-norbornene-2,3-dicarboxylic acid anhydride with heat. The thermal energy is...
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4082798 |
Perfluoroalkylthio norbornane compounds
The compounds disclosed are of the formula ##STR1## and the anhydrides thereof WHEREIN R f is a perfluoroalkyl group, R' is a divalent group of alkylene, ether, thioether or a sec.amine, ...
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4073794 |
7,8 Diacyl bicyclo 2.2.2!bis(2,3-dicarboximide) compounds
7,8-Diacyl bicyclo 2.2.2!oct-5-ene-bis(2,3-dicarboximide) and 7,8-diacyl bicyclo 2.2.2!octane-bis(2,3-dicarboximide) compounds useful for the production of polyimides.
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4058537 |
Esters of anhydride aromatic polycarboxylic acids with perfluoroalkyl alcohols
This invention describes new perfluoroalkyl substituted esters, diesters and polyesters which contain at least one cyclic 5-membered anhydride group or two carboxy groups, as well as half amides...
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4039560 |
Method of producing modified polyethylene wax
A method of producing a modified waxy ethylene polymer, which comprises polymerizing ethylene in an inert hydrocarbon solvent at 120° - 250° C. and pressure ranging from the vapor pressure of the...
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3989725 |
Perfluoroalkylthio norbornane 2,3-dicarboxylic acid compounds
The compounds disclosed are of the formula ##SPC1## And the anhydrides thereof Wherein R f is a perfluoroalkyl group, R' is a divalent group of alkylene, ether, thioether or a sec.amine, ...
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3980674 |
2,3-Disubstituted 7-oxabicyclo-[2.2.1]-5-heptene
The present invention is concerned with novel 7-oxabicyclo-[2.2.1]-5-heptene derivatives and a process for their production. These compounds are useful intermediates in the production of various...
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3957795 |
Novel cyclopentene and cyclopentane derivatives
The present invention is concerned with novel cyclopentene and cyclopentane derivatives which have pharmacological, particularly analgesic and antiinflammatory activity, and are also useful...
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3925445 |
Hydrocyanation of olefins
A process for hydrocyanating an ethylenically unsaturated organic compound in the presence of an olefin-bonded zerovalent nickel complex of the formula Ni(PXYZ) 2 A, wherein X is OR, Y and Z are R...
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3607887 |
PROCESS FOR THE PREPARATION OF MELLOPHANIC DIANHYDRIDE
Mellophanic dianhydride is prepared by the reaction of cyclohexane-1, 2, 3, 4-tetracarboxylic acid and bromine followed by the dehydration of the mellophanic acid thus prepared.
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3522277 |
3,6 - ENDOETHYLENO - 4 - CYANO - CYCLOHEXANEDICARBOXYLIC - (1,2) - ANHYDRIDE AND PROCESS FOR DIELS-ALDER ADDITION USING CYCLOHEXA - 3,5 - DIENE - TRANS - 1,2 - DICARBOXYLIC ACID
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3492330 |
NORBORNANE DIISOCYANATES
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3479380 |
DIALKYLTIN,1,4-ENDOALKYLENE-2,3-DIHYDROPHTHALATES AND -1,2,3,6 - TETRAHYDROPHTHALATES
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3476546 |
BICYCLO(2,2,2)OCT-5-ENE-2,3-DICARBOXYLIC ANHYDRIDES AS HERBICIDES
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3453293 |
PROCESS FOR THE PREPARATION OF BICYCLO-(2:2:1) HEPT-5-ENE DICARBOXYLIC ACID ANHYDRIDES
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3426044 |
3,6 - DIHYDROXY - 1,2,3,6 - TETRAHYDROPHTHALIC ACID,ANHYDRIDE,DERIVATIVES AND POLYMERS THEREOF
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3423431 |
PHOTOLYTIC PROCESS FOR PREPARING POLYCYCLIC FUSED RING DIANHYDRIDES
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3413317 |
Bicycloheptane tricarboxylic acids, anhydrides and alkyl esters thereof
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3401179 |
Carboxylated bicycloheptene compounds
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3390156 |
Fulvene compositions and polymers
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3359285 |
Production of cyclic addition products
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3326940 |
Derivatives of bicycloheptane ketones and method for preparing same
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3320267 |
2, 3-dicarboxylic acid and derivatives of norbornanes and the corresponding norbornenes
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3287395 |
Diels-alder reaction products
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3284444 |
Aziridine derivatives
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3271476 |
Curable mixtures of epoxy resins and polyanhydrides or polycarboxylic acids
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3268554 |
Substituted endo-perhydro-4, 7-methanoisoindoles and intermediates therein
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3252936 |
Polymer of 3, 3-bis(chloromethyl)oxetane stabilized with methyl cis-3, 6-endomethylene-1, 2, 3, 6-tetrahydrophthalic anhydride
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3250789 |
Isomeric 7-diphenyl-7-hydroxy-2, 3-norbornane dicarboxylic acid gamma-lactones
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3243460 |
Aminomethyl monohydroxy norbornenes and norbornanes
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3218353 |
Process for preparing 1, 2, 3, 4-butanetetracarboxylic acid and 1, 2, 3, 4-cyclopentanetetracarboxylic acid
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3203983 |
Certain substituted norbornenes and norbornanes
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3194816 |
Purification of 1, 2, 3, 4-cyclopentanetet-racarboxylic acid and preparation of its anhydride
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3174979 |
Carboxylic acid esters of n-(hydroxyalkyl)-endo perhydro-4, 7-methanoisoindoles and intermediates
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3105839 |
Bicyclo (2. 2. 1)hept-5-ene-2, 3-dicarboxylic acid anhydrides
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3100776 |
Novel 2-r3-3a,4,7a-tetrahydro-4,7-(r1,r2-y)-r4-isoindolines and the corresponding 3a,4,5,6,7,7a-hexahydro compounds
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