Featured patents

Asymmetric Synthesis of Norcantharidin Analougus by Alkynylation of Oxabenzonorbornadienes and Their Anticancer Activities
US 08835658 B2, Sept. 16, 2014, Two of the cyclos share at least three ring members, Jun Hu et al. / Hong Kong Baptist University (Kowloon, HK)
A method of synthesizing norcantharidin analogues comprising the structure…

Process for Preparing an Epoxide From an Oxygenate
US 08822709 B2, Sept. 2, 2014, Epoxidation at site of ethylenic unsaturation, Pieter Oldenhove et al. / Shell Oil Company (Houston, US)
A process for preparing an epoxide from an oxygenate, the process comprising…

Nucleophile Assisting Leaving Groups
US 08822707 B2, Sept. 2, 2014, Three or more ring oxygens in the hetero ring, Salvatore Lepore / Florida Atlantic University (Boca Raton, US)
A compound having the formula:…

Method for Producing Tetrahydropyran Compound and Intermediate Thereof
US 08765974 B2, July 1, 2014, Spiro, Kana Yamaguchi et al. / Nissan Chemical Industries, Ltd. (Tokyo, JP)
A method for preparing a compound represented by the following general formula…

Conversion of 5-(Chloromethyl)-2-Furaldehyde Into 5-Methyl-2-Furoic Acid and Derivatives Thereof
US 08710250 B2, April 29, 2014, The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, Aviad Cahana et al. / xF Technologies Inc. (Albuquerque, US)
A method for the synthesis of an output consisting of one or more of: an ester…

Preparation of 2,2-Bis (Fluoroalkyl) Oxirane and Preparation of Photoacid Generator Therefrom
US 08686166 B2, April 1, 2014, Oxirane ring formed, Youichi Ohsawa et al. / Shin-Etsu Chemical Co., Ltd. (Tokyo, JP)
A method for preparing a 2,2-bis(fluoroalkyl)oxirane of formula (A), comprising:…

Orthoester Derivatives of Crown Ethers as Carriers for Pharmaceutical and Diagnostic Compositions
US 08624044 B2, Jan. 7, 2014, Three or more ring oxygens in the hetero ring, Sylvie Tchertchian et al. / Arisgen SA (Plan-les-Ouates, CH)
The crown ether of any one of the preceding claims, wherein said crown ether…

Method of Making Ketals and Acetals
US 08604223 B2, Dec. 10, 2013, The chalcogen, X, is in a -C(=X)- group, Scott D. Rothstein et al. / Segetis, Inc. (Golden Valley, US)
A method of preparing a compound of formula (3)…

Recovery of Lactic Acid Values From a Meso-Lactide Stream
US 08552209 B2, Oct. 8, 2013, Plural ring oxygens in the lactone ring, Joseph D. Schroeder et al. / NatureWorks LLC (Minnetonka, US)
A process for recovering lactic acid values from a starting lactide composition,…

Method of Synthesis of Substituted Hexitols Such as Dianhydrogalactitol
US 08563758 B2, Oct. 22, 2013, Oxirane ring and chalcogen, cyano, nitrogen, or halogen are bonded directly to the same carbon, Dennis M. Brown / Del Mar Pharmaceuticals (Vancouver, CA)
A method for synthesizing and purifying dianhydrogalactitol (DAG) comprising…

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