对二氰基-9,10 蒽、d'α-苯甲酰基 S,S-二烷基磺酰甲烷在 α-二甲基磺基 β-氧代苯乙基上的钝性中间体进行光解、光敏化。在 obtient principalement des 派生 de tetrahydro-1,2,3,4naphtalenones-1, de cyclopropanes et de propiophenones 上的 Par transposition de cet intermediaire
3-dicarbonyls 2 using ammonium acetate as a nitrogen source. The axialchirality of bipyrrole was anticipated from the X-ray crystal structure and DFT calculations and confirmed by separating the racemates on a chiral column and subsequent CDspectra of the enantiomers. The absoluteconfiguration of the enantiomers was achieved by theoretical CDspectra calculation using the ZINDO method.
Synthesis and Characterization
of Some Heterocyclic Analogues of
<i>N,N′</i>-Perarylated
Phenylene-1,4-diamines and Benzidines as a New Class of
Hole Transport Materials
作者:Joerg Schumann、Andreas Kanitz、Horst Hartmann
DOI:10.1055/s-2002-32531
日期:——
N-diarylsubstituted thioureas 20 and thioacetamides 21 a series of heterocyclic analogous of N,N'-perarylated phenylene-1,4-diamines and benzidines was obtained. These compounds represent, as studied by DSC measurements, a new class of hole transporting materials with high thermal stability and high tendency to form stable amorphous states. Moreover, some of the new compounds are, as measured by cyclic voltammetry
By using the well-known Hantzsch method and starting from some mono- and bifunctional aryl-substituted thioureas, thioacetamides, and bromoketones several new aryl-substituted 2-aminothiazoles and 2-aminothiophenes have been prepared and tested as hole transport materials for OLEDs.
On the oxidative coupling of N,N-disubstituted 2-aminothiophenes—synthesis of N,N′-persubstituted 5,5′-diamino-2,2′-bithiophenes
作者:Olaf Zeika、Horst Hartmann
DOI:10.1016/j.tet.2004.06.107
日期:2004.9
The oxidative coupling of N,N-disubstituted 2-aminothiophenes performed by several heavy-metal free oxidizing agents gives rise to the formation of N,N′-persubstituted 5,5′-diamino-2,2′-bithiophenes which are of interest as hole-transport materials for optoelectronic applications.
One-Pot Synthesis Using the Supported Reagent System Na<sub>2</sub>CO<sub>3</sub>/SiO<sub>2</sub>-PPA/SiO<sub>2</sub>: Synthesis of Benzo[<i>b</i>]thiophenes and Naphthothiophenes
method has been developed for the synthesis of benzo[ B]thiophenes and naphtho[2,1- B]thiophenes from arenethiols and α-halo ketones using Na 2 CO 3 /SiO 2 -PPA/SiO 2 . Reaction of α-halo ketones with arenethiols is promoted by Na 2 CO 3 /SiO 2 to afford α-sulfanyl ketones, which cyclize in the presence of PPA/SiO 2 to give the corresponding thiophene-fused arenes in one-pot. The reaction using α-bromo acetals
开发了一种简单有效的方法,用于使用 Na 2 CO 3 /SiO 2 -PPA/SiO 2 从芳硫醇和α-卤代酮合成苯并[B]噻吩和萘并[2,1-B]噻吩。Na 2 CO 3 /SiO 2 促进α-卤代酮与芳烃硫醇反应生成α-硫烷基酮,在PPA/SiO 2 存在下环化生成相应的噻吩稠合芳烃一锅法。使用α-溴缩醛代替α-卤代酮的反应也通过一锅三步反应得到相应的萘并[2,1-B]噻吩。