Photoreactions of 1,3-dipolar cycloadducts of mesoionic compounds with buckminsterfullerene

Article abstract of DOI:10.1080/10587250210790

Cycloaddition reactions of buckminsterfullercne (C₆₀) with mesoionic compounds gave the 1 to 1 cycloadducts reacted at the 6-6 double bond of C₆₀ as a sole product. A thermal reaction of the adducts proceeded in a reversed fashion and another dienophile trapped the liberated mesoionic compounds. Thermogravimetric analyses of the adducts reveal that extrusion of small fragment occurs at controlled temperature. UV-VIS spectra of the adducts altered with isosbestic points upon irradiation of them. Preparative photoreaction gave only a black compound insoluble in major organic solvents.

Full text of DOI:10.1080/10587250210790

This article was downloaded by: [The Aga Khan University]
On: 16 December 2014, At: 02:32
Publisher: Taylor & Francis
Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered
office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK
Molecular Crystals and Liquid Crystals
Publication details, including instructions for authors and
subscription information:
http://www.tandfonline.com/loi/gmcl20
Photoreactions of 1,3-Dipolar
Cycloadducts of Mesoionic Compounds
with Buckminsterfullerene
Yasuhiko Kawamura a , Kazuyuki Akaishi a , Masaki Nishiuchi a
Masao Tsukayama a
&
a Faculty of Engineering , The University of Tokushima ,
Minamijosanjima-cho, Tokushima, 770-8506, Japan
Published online: 18 Oct 2010.
To cite this article: Yasuhiko Kawamura , Kazuyuki Akaishi , Masaki Nishiuchi & Masao
Tsukayama (2002) Photoreactions of 1,3-Dipolar Cycloadducts of Mesoionic Compounds
with Buckminsterfullerene, Molecular Crystals and Liquid Crystals, 376:1, 219-224, DOI:
10.1080/10587250210790
To link to this article: http://dx.doi.org/10.1080/10587250210790
PLEASE SCROLL DOWN FOR ARTICLE
Taylor & Francis makes every effort to ensure the accuracy of all the information (the
“Content”) contained in the publications on our platform. However, Taylor & Francis,
our agents, and our licensors make no representations or warranties whatsoever as to
the accuracy, completeness, or suitability for any purpose of the Content. Any opinions
and views expressed in this publication are the opinions and views of the authors,
and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content
should not be relied upon and should be independently verified with primary sources
of information. Taylor and Francis shall not be liable for any losses, actions, claims,
proceedings, demands, costs, expenses, damages, and other liabilities whatsoever
or howsoever caused arising directly or indirectly in connection with, in relation to or
arising out of the use of the Content.
This article may be used for research, teaching, and private study purposes. Any
substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing,
systematic supply, or distribution in any form to anyone is expressly forbidden. Terms &
Conditions of access and use can be found at http://www.tandfonline.com/page/terms-
and-conditions

Mol. Cryst. Liq. Cryst., Vol. 376, pp. 219-224
Copyright # 2002 Taylor & Francis
1058-725X/02 $12.00+.00
Photoreactions of 1,3-Dipolar Cycloadducts of
Mesoionic Compounds with Buckminsterfullerene
YASUHIKO KAWAMURA*, KAZUYUKI AKAISHI, MASAKI
NISHIUCHI and MASAO TSUKAYAMA
Faculty of Engineering, The University of Tokushima,
Minamijosanjima-cho, Tokushima 770-8506, Japan
219

220
Y. KAWAMURA et al.

DIPOLAR CYCLOADDUCTS OF FULLERENE
221

222
Y. KAWAMURA et al.

DIPOLAR CYCLOADDUCTS OF FULLERENE
223

224
Y. KAWAMURA et al.