A heterocyclic fused selenophenes and a method of making a heterocyclic fused selenophenes of formula (1):
wherein X is S or Se, Y is S or Se, wherein one or both of X and Y is Se, R is a substituent group. The monomer being capable of polymerization to form an electrically conductive polymer or oligomer.
Selenophenes: Introducing a New Element into the Core of Non-Steroidal Estrogen Receptor Ligands
作者:Silong Zhang、Zhiyong Wang、Zhiye Hu、Changhao Li、Chu Tang、Kathryn E. Carlson、Junjie Luo、Chune Dong、John A. Katzenellenbogen、Jian Huang、Hai-Bing Zhou
DOI:10.1002/cmdc.201600593
日期:2017.2.3
marked effect on their binding affinities. The compound bis(2‐fluoro‐4‐hydroxyphenyl)selenophene (2 f) has the highest relative binding affinity (RBA) of 24.3 for ERβ. In transcription assays, most selenophenes were found to exhibit partial to full agonist activity for both ER subtypes, with compounds bis(2‐methyl‐4‐hydroxyphenyl)selenophene (2 b), bis(4‐fluoro‐3‐hydroxyphenyl)3‐bromoselenophene (6 f),
Synthesis of Alkynylated Selenophenes by Site-Selective Sonogashira Reactions of Tetrabromoselenophene
作者:Peter Ehlers、Tung T. Dang、Tamás Patonay、Alexander Villinger、Peter Langer
DOI:10.1002/ejoc.201201440
日期:2013.4
tetraalkynylated selenophenes were prepared by site-selectiveSonogashirareactions of tetrabromoselenophene. Aryl-, alkyl-, and trimethylsilylacetylenes were suitable substrates for this procedure. The first attack occurred regioselectively at C-2 and C-5. In addition, differently diarylated dialkynylselenophenes were prepared using site-selective Suzuki and Sonogashirareactions.
RegioselectiveSuzukicross-couplingreactions of tetrabromoselenophene allow a convenient synthesis of aryl-substituted selenophenes. High yields were obtained using a novel biaryl-monophosphine ligand. The first tetra(1-alkynyl)selenophene was prepared in one step by a Sonogashirareaction of tetrabromoselenophene.