Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 6673957 | Method for producing alkoxy malonic acid dinitriles A method for producing alkoxy malonic acid dinitrites of general formula (I), ##STR1## wherein R1 means C1-6 -alkyl or halogen-substituted C1-6 -alkyl. The method involves converting the corresponding alkoxy malonic a... | 01/06/2004 |
| 6353127 | -chloronitriles production method The invention relates to a process for the preparation of -chloronitriles by reaction of cyanohydrins of aldehydes or ketones with phosgene using a phosphine oxide as catalyst.... | 03/05/2002 |
| 6242645 | Thermally stable aminosulfur trifluorides Diaryl-, dialkoxyalkyl-, alkylalkoxyalkyl-, arylalkoxyalkyl- and cyclic aminosulfur trifluorides fluorinating agents are disclosed.... | 06/05/2001 |
| 6242658 | Process for the manufacture of fluorine-substituted hydrocarbons Processes involving certain nickel metallacycles with phosphite ligands are disclosed as useful for the manufacture of selected substituted hydrocarbons. Also disclosed are selected compounds including both nickel and phosphite ligands.... | 06/05/2001 |
| 6222064 | Fluorination with aminosulfur trifluorides A fluorination method of oxygen and halogen sites with diaryl-, dialkoxyalkyl-, alkylalkoxyalkyl-, arylalkoxyalkyl- and cyclic aminosulfur trifluorides fluorinating reagents is disclosed.... | 04/24/2001 |
| 6160158 | Fluorination utilizing thermodynamically unstable fluorides and fluoride salts thereof A method for fluorinating a carbon compound or cationic carbon compound utilizes a fluorination agent selected from thermodynamically unstable nickel fluorides and salts thereof in liquid anhydrous hydrogen fluoride. The desired carbon compound or cationi... | 12/12/2000 |
| 5910617 | Process for the preparation of aliphatic or cycloaliphatic chlorides The process according to the invention consists in preparing chlorides of aliphatic or cycloaliphatic hydrocarbons by reacting the corresponding mono- or polyalcohol with phosgene or thionyl chloride in the presence of at least one catalyst chosen from he... | 06/08/1999 |
| 5777149 | Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important C5 building blocks for the manufacture of various polyenecarboxylic acid esters in the field of ... | 07/07/1998 |
| 5502236 | Method for the production of (3-alkoxycarbonyl-2-butenyl)triphenylphosphonium salts Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important CS building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid ... | 03/26/1996 |
| 5304661 | Substituted-acyclic terpene compound Acyclic terpene compounds useful as intermediates for producing sarcophytol A which have an anti-carcinogenic promotor activity and anti-tumor activity, which compounds are shown by the general formula (I): ##STR1##... | 04/19/1994 |
| 5274178 | Terpene derivatives, their preparation and their use Terpene derivatives of formula I, their preparation and their use. In formula I, R represents a hydrogen atom or an alkanoyl radical and R' represents a hydrogen atom or an aliphatic hydrocarbon radical. ##STR1##... | 12/28/1993 |
| 5166373 | Acyclic terpenes The present invention provides novel acyclic terpenes of the formula: ##STR1## which are useful as intermediates for the industrially advantageous production of sarcophytol A.... | 11/24/1992 |
| 5138107 | Phase transfer catalyzed halogenation of carbon acids A process is disclosed for chlorinating, brominating and/or iodinating an organic substrate containing both a single acidic hydrogen atom and at least one electron withdrawing group attached to the same carbon atom. The process replaces the single acidic ... | 08/11/1992 |
| 5132475 | Quaternary ammonium fluoride catalyzed halogenation of carbon acids A process is disclosed for chlorinating, brominating and/or iodinating an organic substrate containing both a single acidic hydrogen atom and at least one electron withdrawing group attached to the same carbon atom. The process replaces the single acidic ... | 07/21/1992 |
| 4806280 | Process for the preparation of unsaturated compound -chlorinated with respect to two electron-attracting groups in a ଲ-position Compounds of formula ##STR1## in which n denotes an integer from 1 to 10 and X and Y, which are identical or different, each denote an electron-attracting group, are made by reacting a halogenating agent with a compound of formula ##STR2## ... | 02/21/1989 |
| 4705650 | Process for the preparation of compounds halogenated to an electron-attracting group Compounds halogenated in the -position to an electron-attracting group of formula ##STR1## in which X denotes a halogen atom, R denotes a hydrogen atom or a hydrocarbon radical or a radical --(CH2)3 --COOR1 and... | 11/10/1987 |
| 4476059 | Chloroacetonitrile synthesis A 2-hydroxyacetonitrile is reacted with thionyl chloride in the presence of a trialkylamine and a suitable solvent to form a 2-chloroacetonitrile. In a preferred embodiment of the invention, 2-chloropropionitrile is prepared by reacting lactonitrile with ... | 10/09/1984 |
| 4350643 | Process for producing 2,3-dihalopropionitrile A process for producing a 2,3-dihalopropionitrile is provided which comprises directly halogenating acrylonitrile with a halogenating agent in the presence of a carbonate, hydrogen carbonate or hydrogen phosphate of an alkali or alkaline earth metal and i... | 09/21/1982 |
| 4345084 | Unsaturated eicosanoic acids Unsaturated eicosanoic acids and derivatives thereof which inhibit the synthesis of SRS-A are useful for treating and preventing asthma and allergic responses caused by SRS-A as well as useful in inhibiting inflammation.... | 08/17/1982 |
| 4028395 | Method for the preparation of octene-nitrile organic compounds and compounds obtained thereby A method for the preparation of a certain class of octenenitriles is disclosed, which uses as the starting compound the 3,7-dimethyl-3-hydroxy-6-octenenitrile: the reaction is a simple dehydration reaction or, in certain cases, an esterification or e... | 06/07/1977 |
| 4025545 | Hydrogen halide removal in halogenated aliphatic nitrile production Hydrogen halide levels of halogenated aliphatic nitriles are unexpectedly reduced by condensing a vapor comprising hydrogen halide and halogenated aliphatic nitrile at selected elevated temperatures, thus producing a product having reduced hydrogen halide... | 05/24/1977 |
