1994 Fiscal Year Final Research Report Summary
Synthesis and Properties of New Macrocyclic Conjugated Compounds
| Project/Area Number |
05453029
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Organic chemistry
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| Research Institution | Toyama University |
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Principal Investigator |
OJIMA Juro Department of Chemistry, Faculty of Science Toyama University Professor, 理学部, 教授 (00018988)
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| Co-Investigator(Kenkyū-buntansha) |
HIGUCHI Hiroyuki Department of Chemistry, Faculty of Science Toyama University Associate Professo, 理学部, 助教授 (00165094)
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| Project Period (FY) |
1993 – 1994
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| Keywords | Nonbenzenoid Aromatics / Annulenedione / Ring Current Effect / Macrocycles / Conjugation |
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| Research Abstract |
Several new systems of macrocyclic conjugated compounds have been synthesized and their properties were examined.
In compounds (1) and (2) several annulenediones showed ring current effect under acidic conditions. Compounds (3) showed diatropicity under both neutral and acidic conditions, and their diatropicities proved to increase with increasing ring size.
In compound (4), the fused azulene ring reduecd the diatropicity of the 14pi-electron annulene of compound (4), but did not reduce the paratropicity of the 16pi-electron annulene of compound (5).
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