3-phosphoindole compounds for the treatment of retroviral infections, and particularly for HIV, are described. Also included are compositions comprising the 3-phosphoindole derivatives alone or in combination with one or more other anti-retroviral agents, processes for their preparation, and methods of manufacturing a medicament incorporating these compounds.
palladium-catalyzed synthesis of arylphosphonates from arenediazonium tetrafluoroborates and triethylphosphite or diethylphosphite is presented. The reaction tolerates useful substituents including bromo, chloro, nitro, ether, cyano, keto, and ester groups, can be performed as a one-pot process from anilines omitting the isolation of arenediazonium salts, and can be extended to the preparation of arylphosphine
Oxidative Phosphonylation of Aromatics with Ammonium Cerium(IV) Nitrate Arylphosphonates 5 and 6 can be prepared in good yields in a one-step synthesis starting from arenes with tri- or diethylphosphites and cerium ammonium nitrate (CAN) as oxidant. The selectivity of the oxidative phosphonylation is relatively low; the reactive species is a phosphite radical cation.
Some rearrangements of unsaturated phosphonate esters
作者:Dianne Cooper、Stuart Trippett
DOI:10.1039/p19810002127
日期:——
α-Hydroxyalk-2-enylphosphonates undergo Claisen orthoester rearrangement on heating with orthoesters, and their arylsulphenates undergo [2,3]-sigmatropic rearrangement to give 3-arylsulphinylalk-1-enylphosphonates. The addition of allyloxide anion to the central carbon of the allene Me2CCCHP(O)(OEt)2 is followed by rapid Claisen rearrangement of the resulting allylic carbanion to give the two possible
与原酸酯一起加热时,α-羟基烷-2-烯基膦酸酯会发生Claisen原酸酯重排,其芳基磺酸酯会发生[2,3]-σ重排,从而生成3-芳基亚磺酰基烷基-1-烯基膦酸酯。在烯丙基Me 2 C C CHP(O)(OEt)2的中心碳上添加烯丙氧基阴离子后,对所得的烯丙基碳负离子进行快速克莱森重排,得到两种可能的β-酮烷基膦酸酯。已制备出通式为R 1 R 2 C CH [CH 2 ] n CR 3 C CHP(O)(OEt)2的烯丙基膦酸酯:当R 1 = R 2时= H,R 3= Me,且n= 2,发生对映体重排以得到异构二烯;α= H,R 3= Me,n= 2。当R 1,R 2,R 3= Me且n= 0时,[1,5]氢化物转移得到三烯,然后环化成环己二烯;当R 1 = Me,R 2 = H,R 3 = H或Me且n = 0时,二烯组分可用于Diels–Alder反应。
Stable electrodes with modified work functions and methods for organic electronic devices
申请人:Sharma Asha
公开号:US20110114935A1
公开(公告)日:2011-05-19
One embodiment is a method, comprising: depositing a molecule on an electrode, wherein the electrode has a surface and the molecule has a binding group (e.g., an anchoring group) that binds to the surface, thereby providing a work function that is stable for at least 100 hours under ambient conditions.