[EN] PRODUCTION AND USE OF PLASTICIZERS BASED ON 2,4-ISOMER OF FURANDICARBOXYLIC ACID DIESTERS [FR] PRODUCTION ET UTILISATION DE PLASTIFIANTS À BASE DE 2,4-ISOMÈRE DE DIESTERS D'ACIDE FURANEDICARBOXYLIQUE
Abstract Carboxylic esters and thioacetates were conveniently prepared in good to excellent yields under mild conditions by the reaction of alkyl halides with sodium carboxylates or sodium thioacetate catalyzed by PEG400 in the absence of solvents.
Palladium-Catalyzed Cross-Coupling Reactions of Carboxylic Anhydrides with Organozinc Reagents
作者:Donghui Wang、Zhaoguo Zhang
DOI:10.1021/ol035801w
日期:2003.11.1
[reaction: see text] Negishi-type cross-coupling reaction was effected by employing organozincs and anhydrides or mixedanhydrides that formed in situ fromsodiumsalts of the corresponding acids and ethyl chloroformate under the catalysis of palladium(0). A general method for preparing symmetrical/unsymmetrical ketones was developed.
Crystalline bis(η<sup>5</sup>-cyclopentadienyl)bis(benzoato/carboxylato)titanium(IV) precursor-directed route to functional titanium dioxide nanomaterials
作者:Tushar S. Basu Baul、Rajesh Manne、Edward R. T. Tiekink
DOI:10.1080/00958972.2018.1528355
日期:2018.11.2
Abstract Five titanocene(IV) carboxylates of the general formula Cp2Ti(O2CR)2 viz., [Ti(η5-C5H5)2(O2CC6H5-4-CH3)2] (1), [Ti(η5-C5H5)2(O2CC4H3-2-O)2] (2), [Ti(η5-C5H5)2(O2CC4H3-3-O)2] (3), [Ti(η5-C5H5)2(O2CC(CH3)3)2] (4), and [Ti(η5-C5H5)2(O2C(CH)C(CH3)3)2] (5) have been synthesized. All the titanocene(IV) carboxylates have been characterized by IR, 1H, and 13C NMR spectroscopic techniques, and the
The syntheses of 32 complexes of the type (η-C5H5)2Ti(OOCC6H4X)2 are reported together with their mass, 1H NMR, 13C NMR, mid- and far-IR spectra. The data are consistent with a model in which the TiOOC bond strength (weaker than that of TiCp and TiHal) is stabilized by electron-withdrawing substituents X on the phenyl rings. The electronic influence of X also extends into the cyclopentadienyl rings
的类型的32种复合物的合成(η-C 5 H ^ 5)2的Ti(OOCC 6 H ^ 4 X)2与它们的质量,一起报告1 H NMR,13 C NMR,中期和远红外光谱。该数据与通过苯环上的吸电子取代基X稳定了TiOOC键强度(比TiCp和TiHal的强度弱)的模型一致。X的电子影响也延伸到环戊二烯基环中。
GREEN, COPPER-CATALYZED DISPROPORTIONATION OF AROMATIC AND HETEROAROMATIC CARBOXYLATES TO DICARBOXYLATES
申请人:Iowa State University Research Foundation, Inc.
公开号:US20200157071A1
公开(公告)日:2020-05-21
The present application relates to a process for preparation of a compound of Formula (I) and Formula (IV):
wherein
is as described herein; and
wherein
and R are as described herein.