NOVEL POLYCYCLIC POLYMER COMPRISING THIOPHENE UNITS, A METHOD OF PRODUCING AND USES OF SUCH POLYMER
申请人:MERCK PATENT GMBH
公开号:US20160301008A1
公开(公告)日:2016-10-13
The present invention relates to a novel polycyclic polymer comprising fused thiophene units. The present invention also relates to a method for producing such polymer as well as the use of such polymer, particularly in organoelectronic applications.
Palladium-Catalyzed C–H Homocoupling of Furans and Thiophenes Using Oxygen as the Oxidant
作者:Na-Na Li、Yan-Lei Zhang、Shuai Mao、Ya-Ru Gao、Dong-Dong Guo、Yong-Qiang Wang
DOI:10.1021/ol501019y
日期:2014.5.16
A general and efficient palladium-catalyzedintermolecular direct C–H homocoupling of furans and thiophenes has been developed. The reaction is characterized by using molecular oxygen as the sole oxidant and complete C5-position regioselectivity. Both C2- and C3-substituted furans or thiophenes are appropriate substrates. The approach provides a straightforward, facile, and economical route to bifurans
[EN] FUNCTIONALIZED BIFURAN AND SYNTHESIS THEREOF<br/>[FR] BIFURANNE FONCTIONNALISÉ ET SYNTHÈSE DE CE DERNIER
申请人:EXXONMOBIL CHEMICAL PATENTS INC
公开号:WO2019182693A1
公开(公告)日:2019-09-26
A 5,5'-Di-(protected)-2,2' -bifuran: wherein each R1 is independently an unsubstituted or substituted 5- or 6-member 1,3-dioxo-2-y1 ring radical. Processes for making the bifuran include coupling 2-(protected)-furfural. Processes for using the bifuran include deprotection, functionalization, and/or polymerization to form a polyester. The polyester can be a renewable, high-performing polyester offering a combination of low cost of production, high sustainability, and excellent performance.
Multiple Diels–Alder Transformations in Linear π-Conjugated Systems
作者:Ori Gidron、Anjan Bedi
DOI:10.1055/s-0037-1610301
日期:2019.1
backbones. Here, Diels–Alder cycloaddition and its reactivity and selectivity are evaluated as a means for obtaining long, novel, π-conjugated backbones. Particular attention is paid to the Diels–Alder conjugation products of furans, such as selectively substituted arenes and, potentially, carbon nanoribbons. 1 Introduction 2 Aromatic Transformations by Diels–Alder Cycloaddition 3 The Question of Regioselectivity
Palladium-catalyzed cross-coupling reactions of organomercurials with organic halides
作者:N.A. Bumagin、P.G. More、I.P. Beletskaya
DOI:10.1016/0022-328x(89)85346-x
日期:1989.3
Organomercurials, (A)2Hg (A = 5-methyl-2-furyl, thienyl) react with organichalides, ArI, in the presence of a palladium catalyst and iodide ion under argon to give cross-coupled products AAr, in high yields