Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7157600 | Process for preparing (per) fluorohalogenethers A process for preparing (per)fluorohalogenethers containing the —SO2F group, having general formula (I): FSO2—R—CF2OCAF—CA′F2 (I) wherein: A and A′, e... | 01/02/2007 |
| 7135191 | Urogenital or anorectal transmucosal vaccine delivery system The invention is directed to a suppository based vaccine delivery system for immunizing against urogenital and anorectally transmitted infectious disease in humans and animals and a method for treating the same. More particularly, this invention is directed to a sup... | 11/14/2006 |
| 7071272 | Method for preparing unsaturated compound by pyrolysis reaction The present invention provides a method for preparing a compound of CF3CF2CF2OCF═CF2 by pyrolyzing a compound expressed by CF3CF2CF2OCF(CF3)COOCF2CF(CF3)O... | 07/04/2006 |
| 7063833 | Method of reducing staining of stannous in dentifrice compositions Disclosed are methods for reducing the staining of dentifrice composition containing stannous comprising administering to a subject the dentifrice composition. The dentifrice composition is a dual phase dentifrice and is contained in physically separated compartment... | 06/20/2006 |
| 7012095 | Compounds for modulating cell proliferation Novel styrylacrylonitrile compounds which are useful in treating a variety of cell proliferative disorders such as cancer are disclosed. The compounds are of Formula (I). ... | 03/14/2006 |
| 6479687 | Preparation of vinylphosphonic acid compounds A process for preparing vinylphosphonic acid compounds of the formula (I) ##STR1## where R1 and R2 are, independently, H, C1-16 -alkyl, C6-12 -aryl, C7-12 -alkaryl or C7-12 -aralkyl, it being ... | 11/12/2002 |
| 6429329 | Synthesis of a hydrocarbylvinylphosphonic acid hydrocarbyl ester A process for the synthesis of a hydrocarbylvinyl-1-phosphonic acid hydrocarbyl ester, such as a 1-phenylvinylphosphonic acid dialkyl ester, which utilizes: (a) the base catalyzed addition (preferably using a nonnucleophilic strong organic base) of a hydr... | 08/06/2002 |
| 6215013 | Preparation of phosphonic acid derivatives A method for the preparation of alkene phosphonic acids and salts thereof, such as VDPA (vinylidene diphosphonic acid) is disclosed. The products can be produced in a stable, substantially pure form and in high yield. The method includes the azeotropic re... | 04/10/2001 |
| 6191298 | Thioalkenylphosphonic acid ester and process for the preparation thereof A phosphonic acid ester compound of the formula: R1 C(SR3).dbd.CHP(.dbd.O)(OR2)2 or [P(.dbd.O)(OR2)2 ]CH.dbd.C(SR3)--R4 --C(SR3).dbd.CH[P(.dbd.O)(OR2)... | 02/20/2001 |
| 5763637 | Process for preparing dimethyl vinylphosphonate from dimethyl 2-acetoxyethanephosphonate The invention relates to a process for preparing dimethyl vinylphosphonate by thermal dissociation of dimethyl 2-acetoxyethanephosphonate in the gas phase, which comprises vaporizing dimethyl 2-acetoxyethanephosphonate and dissociating it without catalysi... | 06/09/1998 |
| 5654462 | Process for making chiral alpha-amino phosphonates and selected novel chiral alpha-amino phosphonates This invention is selected novel chiral (essentially pure) alpha-amino phosphonates, process for the preparation which is a catalytic asymmetric hydrogenation of olefins and novel intermediates therefor. The alpha-amino phosphonates are useful as antibiot... | 08/05/1997 |
| 5475128 | Process for preparing dialkyl vinylphosphonates Process for the continuous preparation of dialkyl vinylphosphonates using catalysts at temperatures of from 150° to 270° C. by dissociation of dialkyl acetoxyethanephosphonates at a pressure of from 5 to 500 mbar in contact with a liquid, catalytically ... | 12/12/1995 |
| 5442085 | Synthesis of tetraalkyl vinylidene diphosphonate monomer A method of making a monomer of tetraalkyl vinylidene-1, 1-diphosphonate. The monomer is manufactured by combining an aqueous secondary amine solution with a formaldehyde and a tetra (alkyl) methylene diphosphonate. The resulting mixture is maintained at ... | 08/15/1995 |
| 5256808 | Synthesis of tetraalkyl vinylidene diphosphonate monomer A method of making a monomer of tetraalkyl vinylidene-1, 1-diphosphonate. The monomer is manufactured by combining an aqueous secondary amine solution with a formaldehyde and a tetra (alkyl) methylene diphosphonate. The resulting mixture is maintained at ... | 10/26/1993 |
| 5132444 | Gas-phase preparation of vinyl phosphonic acid derivatives A process for the preparation of vinyl phosphonic derivatives of the general formula I ##STR1## in which R1 and R2 are the same or different and may stand for hydrogen or a C1 -C8 -alkyl, a C6 -C... | 07/21/1992 |
| 5061819 | Methods for synthesizing phosphonate reagents and retinoids Processes for synthesizing novel phosphonate diester compounds of the general formula ##STR1## are disclosed and claimed. The claimed process includes forming a reaction mixture of a C-14 aldehyde and a methylene-bis-phosphonic acid ester, separ... | 10/29/1991 |
| 4960919 | Process for the preparation of alkyl alkenylphosphinates A process for the preparation of alkyl esters of alkenylphosphinic acid, having the general formula I ##STR1## wherein R1 represents H or CH3, R2 alkyl having from 1 to 4 carbon atoms or phenyl and R3 alkyl... | 10/02/1990 |
| 4939284 | Process for the manufacture of tetraalkyl ethenylidenebisphosphonate esters Disclosed are tetraalkyl enthenylidenebisphosphonates and a method for their manufacture. These compounds are suitable for use as antimicrobial agents in combating a number of pathogenic microorganisms, such as bacteria, yeasts, viruses, fungi and protozo... | 07/03/1990 |
| 4894470 | Process for the preparation of dialkyl vinylphosphonates A process for the production of dialkyl esters of vinyl phosphonic acid which comprises subjecting dialkyl esters of 2-acetoxyethane phosphonic acid to cleavage by contacting with a liquid catalytically acting medium at a temperature in the range from 150... | 01/16/1990 |
| 4879400 | Process for producing alpha-(benzylidene)acetonylphosphonates A process for producing an -(benzylidene)acetonylphosphonate of the formula: ##STR1## wherein Ar is phenyl substituted by at least one substituent selected from the group consisting of fluorine, chlorine, bromine, nitro, chloromethyl, dic... | 11/07/1989 |
| 4808743 | Vinyl chloroformates and preparation Vinyl chloroformates are described of formula ##STR1## in which: R1 .dbd.R2 .dbd.Cl, Br or a saturated 1-4 carbon atom alkyl or together they form a cycloaliphatic ring of 4-8 carbon atoms; R3 .dbd.H when R1 or ... | 02/28/1989 |
| 4608207 | Dialkyl 2-alkylcarbonatoethanephosphonates Dialkyl vinylphosphonates are prepared by heating the new dialkyl 2-alkylcarbonatoethanephosphonates in the presence of catalysts. Also disclosed is a process for making the new dialkyl 2-alkylcarbonatoethanephosphonate by transesterification of a dialkyl... | 08/26/1986 |
| 4582905 | 1,4-Dioxaspiro(4,5)decene compounds Convenient intermediates for preparing 3-substituted-2-hydroxypropyl aryl ether ଲ-blockers, a reaction to the intermediates of the following formula and a conversion to obtain the said ଲ-blockers are disclosed. ##STR1## (wherein X is hydr... | 04/15/1986 |
| 4493803 | Process for the preparation of vinylphosphonic acid diesters and vinylphosphonic acid A method for making a vinylphosphonic acid diester of the formula by heating a dialkyl 2-acetoxyethane phosphonate of the formula in the presence of an acidic or basic catalyst and reacting the resulting product with an orthoester of the formula... | 01/15/1985 |
| 4426336 | Process for the preparation of vinylphosphonic acid derivatives and the use thereof A process for the preparation of vinylphosphonic acid derivatives by heating 2-chloroethanephosphonic acid derivatives which contain 2-chloroethyl ester groups to temperatures of from 150° to 230° C.... | 01/17/1984 |
| 4417072 | Hydroquinone derivatives and their use in photographic materials Substituted hydroquinone compounds of the formula ##STR1## wherein R1 to R4 are hydrogen or alkyl and Z is an aromatic ring or a group of the formula --X--Y--X--, wherein X is an aromatic ring and Y is an electron withdrawing gr... | 11/22/1983 |
| 4388252 | Process for the manufacture of vinyl phosphonic acid derivatives Process for the manufacture of vinyl phosphonic acid derivatives of the formula ##STR1## with R1 being hydrogen or alkyl with 1 to 4, preferably 1 to 2, carbon atoms and n being 1 or 2, which comprises heating to 150°-270° C., prefe... | 06/14/1983 |
| 4386036 | Process for the preparation of vinylphosphonic acid Process for the preparation of vinylphosphonic acid, by heating a 2-acetoxyethanephosphonic acid dialkyl ester of the general formula ##STR1## wherein R denotes an alkyl group having 1-4 carbon atoms, in the presence of acid or basic catalysts at 150... | 05/31/1983 |
| 4358412 | Preparation of vinyl ethers The invention relates to a process to produce compounds represented by the general formula by decarboxylation of compounds represented by the general formula ##STR1## where a=0-3; b=0-3; provided a+b=2 or 3; Y.dbd.an acid derivative; X.dbd.Cl, I, or Br; M... | 11/09/1982 |
| 4340750 | Process for producing fluorovinyl ether A fluorovinyl ether having the formula wherein X represents --H, --Cl, --Br, --F, --CO2 R, --CONRR', --SO2 F, ##STR1## or --COF and R represents a C1 -C10 alkyl group; R' represents --H or a C1 -... | 07/20/1982 |
| 4307040 | Process for producing phosphonomaleic acid esters Novel phosphonomaleic acid esters of the formula ##STR1## in which R1 is an optionally substituted alkyl radical containing from 1 to 6 carbon atoms and, where n=0, may also be an optionally substituted aryl radical, R2, R3... | 12/22/1981 |
| 4275226 | Process for producing fluorovinyl ether A fluorovinyl ether having the formula wherein X represents --H, --Cl, --Br, --F, --CO2 R, --CONRR', --SO2 F, ##STR1## or --COF and R represents a C1 -C10 alkyl group; R' represents --H or a C1 -... | 06/23/1981 |
| 4087488 | Cyano-4-(0,0-dialkylphosphoryloxy)-cyclohex-4-enes Dienylphosphates of the formula ##STR1## wherein each of R1 and R1 ' is lower alkyl, aryl or benzyl and each of R2, R3 and R4 is hydrogen or lower akyl, Are useful as anthelmintic agents and as interm... | 05/02/1978 |
| 4025584 | 1-Acetyl-3(4)-(dihydrocarbylphosphoryloxy)-cyclohex-3-enes Dienylphosphates of the formula ##STR1## wherein each of R1 and R1 ' is lower alkyl, aryl or benzyl and each of R2, R3 and R4 is hydrogen or lower alkyl, Are useful as anthelmintic agents and as inter... | 05/24/1977 |
| 3998915 | Process for the production of 1-acyloxy alkylene phosphonic acid dialkyl esters New process for producing 1-acyloxy alkylene phosphonic acid dialkyl esters comprising reacting -oxo-alkane phosphonic acid dialkyl esters with carboxylic acid anhydrides in the presence of basic catalysts.... | 12/21/1976 |
