Regioselective synthesis of novel 3-allyl-2-(substituted imino)-4-phenyl-3H-thiazole and 2,2′-(1,3-phenylene)bis(3-substituted-2-imino-4-phenyl-3H-thiazole) derivatives as antibacterial agents
Abstract Several novel 3-allyl-2-(substituted imino)-4-phenyl-3 H -thiazole derivatives were synthesized by the reaction of allyl-thioureas and 2-bromoacetophenone. We also report the synthesis of bis-allyl-3 H thiazoles using the reaction of various isothiocyanates and 1,3-phenylenediamine. The structures of all compounds were characterized by spectral and elemental analysis. Most of the synthesized
摘要 通过烯丙基硫脲与2-溴苯乙酮反应合成了多种新型3-烯丙基-2-(取代亚氨基)-4-苯基-3H-噻唑衍生物。我们还报告了使用各种异硫氰酸酯和 1,3-苯二胺的反应合成双烯丙基-3 H 噻唑。所有化合物的结构均通过光谱和元素分析表征。大多数合成的化合物对沙门氏菌、藤黄微球菌、枯草芽孢杆菌和铜绿假单胞菌均表现出有效的抗菌活性。
Non-toxic corrosion-protection pigments based on manganese
申请人:——
公开号:US20040011252A1
公开(公告)日:2004-01-22
Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Non-toxic corrosion-protection pigments based on rare earth elements
申请人:——
公开号:US20040104377A1
公开(公告)日:2004-06-03
A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.
Some Phenylthiourea Derivatives and their Antituberculous Activity
作者:L. Doub、L. M. Richardson、D. R. Herbst、M. L. Black、O. L. Stevenson、L. L. Bambas、G. P. Youmans、A. S. Youmans
DOI:10.1021/ja01542a043
日期:1958.5
Oeriu et al, Academia Republicii Populare Romine, Baza de Cercetari Stiintifice, Timisoara, Studii si Cercetari, Stiinte Chimice, 1958, vol. 6, p. 155,156