Coupling Reaction of Alkynyliodonium Salts with Alkynylcopper Reagents. A New Access to Liquid-Crystalline 1,3-Butadiynes

T. Kitamura Department of Chemical Science and Technology, Faculty of Engineering, Kyushu University, 36, Hakozaki, Fukuoka, 812-81, Japan

C. H. Lee Department of Chemical Science and Technology, Faculty of Engineering, Kyushu University, 36, Hakozaki, Fukuoka, 812-81, Japan

Y. Taniguchi Department of Chemical Science and Technology, Faculty of Engineering, Kyushu University, 36, Hakozaki, Fukuoka, 812-81, Japan

Y. Fujiwara Department of Chemical Science and Technology, Faculty of Engineering, Kyushu University, 36, Hakozaki, Fukuoka, 812-81, Japan

Y. Sano Department of Industrial Chemistry, Faculty of Engineering, Kyushu Sangyo University, Matsukadai, Fukuoka, 813, Japan

M. Matsumoto Department of Industrial Chemistry, Faculty of Engineering, Kyushu Sangyo University, Matsukadai, Fukuoka, 813, Japan

Abstract

1,4-Disubstituted 1,3-butadiynes bearing long alkyl and alkoxy chains are seletively prepared by the coupling reaction of alkynyliodonium salts with alkylcopper reagents. The length of the alkyl chains both in the alkynyliodonium salts and in the copper reagents is not the significant factor of the coupling reaction and the coupling reaction affords unsymmetrical 1,4-disubstituted 1,3-butadiynes bearing long alkyl chains in good yields. The 1,3-butadiynes prepared in the present study exhibit mesogenic properties.

Key Words:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Coupling Reaction of Alkynyliodonium Salts with Alkynylcopper Reagents. A New Access to Liquid-Crystalline 1,3-Butadiynes

Information for

Open access

Opportunities

Help and information

Coupling Reaction of Alkynyliodonium Salts with Alkynylcopper Reagents. A New Access to Liquid-Crystalline 1,3-Butadiynes

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature