Thiourea Per Se Or Salt Thereof Patents (Class 564/31)
-
Patent number: 8334405Abstract: Chiral thioureas are effective catalysts for the borane reduction of prochiral ketones to optically active alcohols. A prochiral ketone may be reduced to an optically active alcohol in the presence of a substantially sub-stoichiometric amount of chiral thiourea. The asymmetric thiourea compound of the present invention may be produced according to a production method described herein.Type: GrantFiled: April 3, 2008Date of Patent: December 18, 2012Assignee: Board of Regents, The University of Texas SystemInventors: Derun Li, John R. Falck
-
Publication number: 20110223093Abstract: This invention relates to sulfur functionalized ionic liquid compounds that are useful in methods of carbon dioxide or sulfur dioxide removal to which they may be applied.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMAPNYInventor: MARK A. SCIALDONE
-
Publication number: 20110086409Abstract: A method for making a surfactant-based monolithic column is provided. The method comprises providing a mixture comprising at least one surfactant monomer, at least one crosslinker, at least one initiator, and at least one porogen and polymerizing the mixture to form the surfactant-based monolithic column. The present disclosure also provides a surfactant-based monolithic column, a method for separating molecules, and a process for preparing a surfactant monomer.Type: ApplicationFiled: March 30, 2009Publication date: April 14, 2011Inventors: Shahab Ahmed Shamsi, Jun He, Congying Gu
-
Publication number: 20080118870Abstract: There is provided an anti-reflective coating forming composition for lithography comprising a reaction product obtained by reacting a sulfur-containing compound having thiourea structure with a nitrogen-containing compound having two or more nitrogen atoms substituted with a hydroxymethyl group or an alkoxymethyl group in the presence of an acid catalyst and a solvent. The anti-reflective coating obtained from the composition has a high preventive effect for reflected light, causes no intermixing with photoresists, has a higher dry etching rate compared with photoresists and can use in lithography process for manufacturing semiconductor device.Type: ApplicationFiled: September 27, 2005Publication date: May 22, 2008Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Tomoyuki Enomoto, Yoshiomi Hiroi, Keisuke Nakayama
-
Patent number: 6794541Abstract: This invention provides combinatorial chemistry libraries containing thiourea and urea compounds. In addition, the invention relates to methods for constructing combinatorial chemistry libraries containing thiourea and urea compounds. Furthermore, this invention relates to methods for the identification of bioactive thiourea and urea compounds as well as compositions and therapeutic methods for treating cancer.Type: GrantFiled: September 19, 2001Date of Patent: September 21, 2004Assignee: Parker Hughes InstituteInventors: Zhaohai Zhu, Chen Mao, Rama K. Narla, Fatih M. Uckun
-
Publication number: 20020115106Abstract: The invention relates to methods for forming combinatorial libraries. The invention provides methods suitable for the rapid and convenient synthesis of very large combinatorial libraries of small organic molecules. In particular, the invention provides a method for forming combinatorial libraries combining amide, sulfonamide, or urea bond formation with reductive amination.Type: ApplicationFiled: December 20, 2001Publication date: August 22, 2002Applicant: NeoGenesis Pharmaceuticals, Inc.Inventors: Gerald W. Shipps, Kollol Pal
-
Patent number: 6187726Abstract: Compounds and lubricant compositions are disclosed that comprise a substituted linear thiourea of the structure wherein R1, R2, and R4 are independently selected from the group consisting of alkyl, alkenyl, aryl, alkaryl, aralkyl, and hydrogen; R3 is selected from the group consisting of alkyl, alkenyl, and combinations thereof; X is selected from the group consisting of (i) methylene, if, and only if, R3 is alkenyl, (ii) oxygen, and (iii) sulfur; and A is selected from the group consisting of alkylene and aryl.Type: GrantFiled: November 12, 1999Date of Patent: February 13, 2001Assignee: CK Witco CorporationInventors: Theodore E. Nalesnik, Franklin H. Barrows
-
Patent number: 5728699Abstract: The present invention presents a benzylsulfide derivative of the formula (I) or its salt: ##STR1## wherein R.sup.1 is a C.sub.1-6 alkyl group, a C.sub.1-6 haloalkyl group, a C.sub.2-4 alkenyl group, a cyano group, etc., and each of R.sup.2 and R.sup.3 is a hydrogen atom, a halogen atom, a cyano group, a C.sub.1-4 alkyl group, a C.sub.1-3 haloalkyl group, etc., R.sup.4 is a hydrogen atom, a halogen atom, a C.sub.1-4 alkyl group, etc., A is a hydrazinoaralkyl group or hydrazonoaralkyl group, and n is 0, 1 or 2; a process for its production; and a pesticide containing such a benzylsulfide derivative as an active ingredient. The benzylsulfide derivative of the present invention is capable of controlling various pests without adversely affecting crop plants.Type: GrantFiled: December 19, 1996Date of Patent: March 17, 1998Assignees: Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.Inventors: Keiji Toriyabe, Hideharu Sasaki, Naoshi Masuyama, Akihide Nagai, Hiroyuki Yano, Mieko Kawashima, Yutaka Kurihara, Tomonori Shimazu
-
Patent number: 4581452Abstract: A process for preparing a 5-perfluoroalkyl-dihydrouracil derivative of the general formula ##STR1## wherein R.sub.f represents a perfluoroalkyl group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, or an alkyl, cycloalkyl, aryl, aralkyl or heterocyclic group, and Y is an oxygen or sulfur atom, which comprises (a) reacting a compound of the general formula ##STR2## wherein X represents a halogen atom or hydroxyl group, with a urea derivative of the general formula ##STR3## provided that when X is a hydroxyl group and at least one of R.sup.1 and R.sup.2 is a hydrogen atom, said reaction is carried out in the presence of a condensing agent, or (b) cyclizing a compound of the general formula ##STR4## and a novel intermediate compound of the above formula (IV).Type: GrantFiled: August 26, 1983Date of Patent: April 8, 1986Assignee: Sagami Chemical Research CenterInventors: Iwao Ojima, Takamasa Fuchikami, Makoto Fujita
-
Patent number: 4370497Abstract: The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >C.dbd.S groups, in the presence of other relatively easily oxidized functions which remain unaffected; telluroxides of interest as oxidizing agents include, for example, compounds of the formula: ##STR1## wherein R and R.sup.1, which may be the same or different, each represent an optionally substituted aryl or heterocyclic group; or R and R.sup.1 together with the tellurium atom therebetween represent a heterocyclic ring, which may contain one or more further heteroatoms, and which may carry substituents and/or fused aromatic rings.Type: GrantFiled: August 7, 1980Date of Patent: January 25, 1983Inventors: Derek H. R. Barton, Steven V. Ley, Clive A. Meerholz