Direct Regioselective Alkylation of Non-Basic Heterocycles with Alcohols and Cyclic Ethers through a Dehydrogenative Cross-Coupling Reaction under Metal-Free Conditions
作者:Ebrahim Kianmehr、Maryam Fardpour、Khalid Mohammed Khan
DOI:10.1002/ejoc.201700030
日期:2017.5.10
A metal-free, simple, and highly efficient method for the direct alkylation of non-basic heterocycles and basic ones with various alcohols and cyclic ethers has been developed based on an oxidative C–H activation process. The corresponding products were generated through a dehydrogenative C–C cross-coupling reaction in the presence of di-tert-butyl peroxide in good to high yields.
BENZOBIS(THIADIAZOLE) DERIVATIVE, INK CONTAINING SAME, AND ORGANIC ELECTRONIC DEVICE USING SAME
申请人:UBE Industries, Ltd.
公开号:EP3181569A1
公开(公告)日:2017-06-21
An object of the present invention is to provide a benzobis(thiadiazole) derivative, which has an excellent mobility of electron (field-effect mobility) and also has an excellent stability in the atmosphere. The present invention relates to a benzobis(thiadiazole) derivative or the like, which has cyclic imide structures annelated to an aromatic ring in the molecule, represented by the following general formula (1) or (2) wherein R, A and Z represent predetermined groups.
本发明的目的是提供一种苯并双(噻二唑)衍生物,它具有优异的电子迁移率(场效应迁移率),在大气中也具有优异的稳定性。本发明涉及一种苯并双(噻二唑)衍生物或类似物,其分子中的环状亚胺结构与芳香环环化,由下式通式(1)或(2)表示,其中 R、A 和 Z 代表预定基团。
NOVEL THIOPHENE COMPOUND AND PROCESS FOR PRODUCING CAFFENOFURAN OR ANALOGUE THEREOF FROM THE SAME
申请人:SAN-EI GEN F.F.I., INC.
公开号:EP1854791B1
公开(公告)日:2011-07-13
Novel Thiophene Compound and Process for Producing Caffenofuran or Analogue Thereof from the Same
申请人:Katsumura Shigeo
公开号:US20080167481A1
公开(公告)日:2008-07-10
The present invention provides a novel thiophene compound as a synthetic intermediate that is useful for efficient production of kahweofuran or an analogue thereof. The present invention also provides a process for producing kahweofuran or an analogue thereof using the novel thiophene compound as an intermediate material.
Of novel thiophene compounds represented by Formula (1):
wherein R
1
is a hydrogen atom or a C
1
-C
4
lower alkyl group; R
2
is a hydrogen atom or an alcohol-protecting group; R
3
is a hydrogen atom, —COR
4
or —C(OH)R
5
(wherein R
4
and R
5
each represent a C
1
-C
4
lower alkyl group); provided that when R
2
and R
3
are hydrogen atoms, R
1
is not any of a hydrogen atom, methyl group, or n-propyl group; a thiophene compound represented by Formula (2) is reduced and cyclized in the presence of a transition metal catalyst to produce kahweofuran or kahweofuran analogue (3
a
) shown below:
wherein R
1
is a hydrogen atom or a C
1
-C
4
lower alkyl group, and R
4
is a C
1
-C
4
lower alkyl group.