Title:
SUMANENE AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/067446
Kind Code:
A2
Abstract:
The invention provides sumanene and derivatives thereof and a process for the production of both. As represented by the scheme (1), benzotris- (norbornadiene) (87) is synthesized from norbornadiene (86) and then converted by metathesis into hexahydrosumanene (88) and the heaxahydrosumanene (88) is dehydrogenated into sumanene (84). Thus, sumanene can be mass-produced under mild conditions. Further, sumanene analogues wherein the carbon atoms at the benzylic positions are replaced by nitrogen (N) or oxygen (O) can be also similarly produced and various derivatives can be obtained by further chemical modification of such analogues. Sumanene and analogues and derivatives thereof are extremely useful as the raw material for the synthesis of electronic materials, various fullerenes, and heterofullerenes, and so on.
Inventors:
HIRAO TOSHIKAZU
SAKURAI HIDEHIRO
DAIKO TARO
SAKURAI HIDEHIRO
DAIKO TARO
Application Number:
PCT/JP2004/000678
Publication Date:
August 12, 2004
Filing Date:
January 27, 2004
Export Citation:
Assignee:
OSAKA IND PROMOTION ORG (JP)
HIRAO TOSHIKAZU
SAKURAI HIDEHIRO
DAIKO TARO
HIRAO TOSHIKAZU
SAKURAI HIDEHIRO
DAIKO TARO
International Classes:
C01B7/00; C07C5/27; C07C5/50; C07C6/12; C07C13/62; C01B; (IPC1-7): C01B/
Other References:
SAKURAI H. ET AL: 'A Synthesis of Sumanene, a Fullerene Fragment' SCIENCE vol. 301, 2003, page 1878, XP002980832
PRIYAKUMAR U.D. ET AL: 'Theory provides a clue to accomplish the synthesis of sumanene, C21H12, the prototypical C3v-buckybowl' TETRAHEDRON LETTERS vol. 42, 2001, pages 1379 - 1381, XP004316658
PRIYAKUMAR U.D. ET AL: 'Theory provides a clue to accomplish the synthesis of sumanene, C21H12, the prototypical C3v-buckybowl' TETRAHEDRON LETTERS vol. 42, 2001, pages 1379 - 1381, XP004316658
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (OAP TOWER 8-30, Tenmabashi 1-chome, Kita-k, Osaka-shi Osaka 26, JP)
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