Synthesis and nitrosation reactions of π-extended 1,3-dithiol-2-ylidene systems
作者:Martin R. Bryce、Michael A. Chalton、Antony Chesney、David Catterick、Jing W. Yao、Judith A.K. Howard
DOI:10.1016/s0040-4020(98)00118-5
日期:1998.4
New 1,3-dithiol-2-ylidene derivatives, notably π-extended systems, have been synthesised by Wittigreactions of phosphorane and phosphonate ester derivatives of 1,3-dithiole with activated ketones and α,β-unsaturated ketones. Nitrosation reactions of a range of these π-extended systems, results in the formation of nitroalkenes, via unstable nitrosoalkene intermediates, which, in general, could not be
Sulfur Containing Heterocycle-Fused Naphthalene Tetracarboxylic Acid Diimide Derivatives, Preparation Method And Use Thereof
申请人:Gao Xike
公开号:US20120253045A1
公开(公告)日:2012-10-04
Sulfur containing heterocycle-fused naphthalenetetracarboxylic acid diimide derivatives represented by formula (I) are disclosed,
in which, R
1
and R
2
are C
1
-C
30
and C
1
-C
12
linear alkyl or branched alkyl, respectively; R
3
is H or halogen atom. The preparation method of the derivatives and the use thereof in manufacture of organic thin film field effect transistor or organic solar batteries are also disclosed.
An efficient synthesis of the title compounds via formal dehydration of the corresponding 1,3-dithiolane S-oxides with iodotrimethylsilane and diisopropylethylamine (Hünig's base) is reported.