Oligothiophenes III: Synthesis of Tetra‐thienyl‐Substituted Ethylenes Including an Abnormal McMurry Coupling Result
摘要:
This article describes the synthesis of some selected tetra-thiophenyl-substituted ethenes by McMurry coupling of some selected thienyl ketones, including a surprising coupling product. The products were analyzed by MS, NMR, UV, and x-ray crystallography. Their cyclic voltagrams were recorded.
Photochromic naphtho [2,1-b]pyran compounds containing bithienyl or terthienyl substituents, process for their manufacture, and photochromic materials and articles obtained
Poly(cyclopropenone)s: Formal Inclusion of the Smallest Hückel Aromatic into π-Conjugated Polymers
作者:Patricia A. Peart、John D. Tovar
DOI:10.1021/jo101108f
日期:2010.8.20
hydrolyzed to the respective cyclopropenones. The unusually strong dipole moment associated with the cyclopropenone renders this core formally aromatic, an electronicstructure that becomes more important within individual monomers upon protonation of the carbonyl function with trifluoroacetic acid or alkylation with triethyloxonium salts. The electronic properties of cyclopropenone polymers in their pristine
Krishnaswamy, N. R.; Kumar, Ch. Siva Sai Kamana; Prasanna, S., Journal of Chemical Research, Miniprint, 1991, # 7, p. 1801 - 1830
作者:Krishnaswamy, N. R.、Kumar, Ch. Siva Sai Kamana、Prasanna, S.
DOI:——
日期:——
US6312811B1
申请人:——
公开号:US6312811B1
公开(公告)日:2001-11-06
Photochromic naphtho [2,1-b]pyran compounds containing bithienyl or terthienyl substituents, process for their manufacture, and photochromic materials and articles obtained
申请人:Essilor International Compagnie Generale d'Optique
公开号:US06312811B1
公开(公告)日:2001-11-06
The photochromic compounds of the invention correspond to the formula:
in which Th2 represents a bithienyl group in one of the positions 5 to 10 of the naphthenic ring system system, R1 denotes a bithienyl or trithienyl group and R2 denotes a bithienyl, trithienyl, aryl, naphthyl, thienyl, furyl, pyrrolyl or N-alkylpyrrolyl group.
Oligothiophenes III: Synthesis of Tetra‐thienyl‐Substituted Ethylenes Including an Abnormal McMurry Coupling Result
作者:Harald Halvorsen、Jan Skramstad、Håkon Hope
DOI:10.1080/00397910701199037
日期:2007.4.1
This article describes the synthesis of some selected tetra-thiophenyl-substituted ethenes by McMurry coupling of some selected thienyl ketones, including a surprising coupling product. The products were analyzed by MS, NMR, UV, and x-ray crystallography. Their cyclic voltagrams were recorded.