Catalytic N-oxidation of tertiary amines on RuO2NPs anchored graphene nanoplatelets
作者:Mayakrishnan Gopiraman、Hyunsik Bang、Sundaram Ganesh Babu、Kai Wei、Ramasamy Karvembu、Ick Soo Kim
DOI:10.1039/c3cy00963g
日期:——
pattern (XRD) of GNPs–RuO2NPs revealed that the chemical state of Ru on GNPs was +4. After the optimization of reaction conditions for N-oxidation of triethylamine, the scope of the reaction was extended to various aliphatic, alicyclic and aromatic tertiaryamines. The GNPs–RuO2NPs showed excellent catalytic activity in terms of yields even at a very low amount of Ru catalyst (0.13 mol%). The GNPs–RuO2NPs
[EN] UREA DERIVATIVES OF AMPHOTERICIN B DERIVED FROM SECONDARY AMINES<br/>[FR] DÉRIVÉS D'URÉE DE L'AMPHOTÉRICINE B DÉRIVÉE D'AMINES SECONDAIRES
申请人:UNIV ILLINOIS
公开号:WO2016112243A1
公开(公告)日:2016-07-14
Provided are certain urea derivatives of amphotericin B (AmB) having improved therapeutic index compared to AmB. The compounds of the invention are less toxic than AmB and are useful to treat fungal infections. In certain embodiments the urea derivative of AmB is a compound represented by formula (I) or a pharmaceutically acceptable salt thereof: wherein, independently for each occurrence: R represents methyl, ethyl, propyl, or isopropyl; R' represents methyl, ethyl, propyl, or isopropyl; or R and R', taken together with the nitrogen atom to which they are attached, represent a radical of a cyclic secondary amine. Also provided are methods for making the urea derivatives of AmB.
Reactions of 6-(Dimethylamino)fulvene with diazoazoles and arene- and azolediazonium salts
作者:E. V. Sadchikova、D. L. Alekseeva、I. A. Ushakov、V. G. Nenajdenko
DOI:10.1134/s1070428017100098
日期:2017.10
6-(Dimethylamino)fulvene reacted with 3- and 4-substituted 5-diazoazoles, as well as with 4-substituted benzene- and pyrazole-5-diazonium salts, in an aprotic solvent with high regioselectivity at an extremely high rate to give acyclic coupling products at the α-carbon atom of the cyclopenta-1,3-diene fragment. The nature of the diazo component did not affect the reaction direction, rate, or yield
Method for producing transition metal compounds and their use for the polymerization of olefins
申请人:——
公开号:US20030191334A1
公开(公告)日:2003-10-09
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to their use for the polymerization of olefins.
这项发明涉及一种生产特殊过渡金属化合物的方法,新型过渡金属化合物以及它们用于烯烃聚合的用途。
Unprecedented and novel hetero [6+3] cycloadditions of fulvene: a facile synthesis of the 11-oxasteroid framework
作者:Bor-Cherng Hong、Hsu-I Sun、Zhong-Yi Chen
DOI:10.1039/a906877e
日期:——
In contrast to the Diels–Alder reaction of fulvenes and benzoquinone, 6-dimethylaminofulvene reacts with benzoquinones to give the hetero [6+3] cycloaddition adduct, constituting an efficient and novel route to cyclopenta[c]chromenes including 11-oxasteroids.