118602-97-4Relevant academic research and scientific papers
COMPOUND WITH BRANCHING ALKYL CHAINS, METHOD FOR PREPARING THE SAME, AND USE THEREOF IN PHOTOELECTRIC DEVICE
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Paragraph 0121-0123, (2016/03/05)
The invention discloses a compound having branching alkyl chains, the method for preparing the same and use thereof in photoelectric devices. By applying the branching alkyl chains as the solubilizing group to the preparation of organic conjugated molecules (for example, organic conjugated polymers), the number of methylenes between the resultant alky side chains and the backbone, i.e., m>1, which can effectively reduce the effect of the alkyl chains on the backbone π-π stacking, thereby ensuring the solubility of the organic conjugated molecule while greatly increasing the mobility of their carriers. It is suitable for an organic semiconductor material in photoelectric devices such as organic solar cells, organic light emitting diodes and organic field effect transistors, etc.
Synthesis of polyisoprene terpenoid dendrons and their applications in oligo(phenylene ethynylene)s as "shells"
Chai, Wen-Yu,Shi, Zi-Fa,An, Peng,Wang, Wei,Wang, Lu-Feng,Cao, Xiao-Ping
, p. 143 - 155 (2012/03/26)
The novel double-stage convergent synthesis of a new class of polyisoprene terpenoid (PIPTP) dendrons is described. PIPTP dendrons bear a highly branched aliphatic hydrocarbon skeleton and a hydrophilic hydroxy focal point functionality. These dendrons have the specific formula C (5×2G+1-5)H(5×2 G+2-8)O, and each dendritic layer is constructed from an isoprene unit. The key branching steps involve a double alkyl-metal addition to an ester functionality, followed by deoxygenation of the resulting tertiary alcohol by triethylsilane and trifluoroacetic acid, then hydrogenation or hydrogenolysis. The dendrons were also attached to oligo(phenylene ethynylene)s (OPEs) so as to function as protective shells to allow fine tuning of the nanoscopic environment around the OPE moiety, and to exert precise control of the packing density and intermolecular interaction between the OPE cores. Fluorescence quantum yield data reveal that the OPE core is better encapsulated by the PIPTP dendrons than by Frechet dendrons.
Chemoenzymatic Approach to the Synthesis of the Antiviral Agents Penciclovir and Famciclovir in Isotopically Chiral Labelled Form
Sime, John T.,Barnes, Roger D.,Elson, Stephen W.,Jarvest, Richard L.,O'Toole, Kevin J.
, p. 1653 - 1658 (2007/10/02)
The antiviral agents penciclovir and famciclovir have been synthesised in isotopically chiral form.The synthesis of (+)-methyl 4-benzyloxy-2-(hydroxymethyl)butanoate 12a by use of enzymatic hydrolysis catalysed by the lipase from Candida cylindrac
