Reactions of 3-phenyl-8-triphenylphosphoimino-1-azaazulene with aryl isocyanate, aryl isothiocyanate, and carbon disulfide
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Abstract
Reaction of 3-phenyl-8-triphenylphosphoimino-1-azaazulene (1) with some aryl isocyanates gave 2-arylimino-4-phenyl-2,2a-dihydro-1,2a-diazacyclopent[cd]azulenes (2) and 8-arylimino-1,8-dihydro-1-azaazulenes (3). Reaction of 1 with p-toluenesulfonyl isocyanate gave 2-imino-3-(p-methylphenyl)-4-phenyl-2,2a-dihydro-1,2a-diazacyclopent[cd]azulene as cyclization-rearrangement product. Reaction of phenyl isothiocyanate gave 2. Tautomerization of between 8-imino-1,8-dihydro-1-azaazulenes (3) and 8-amino-1-azaazulenes was discussed on the basis of X-Ray structure analysis and molecular orbital calculation.
Journal
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- Heterocycles
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Heterocycles 64 291-303, 2004
日本複素環化学研究所
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Details 詳細情報について
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- CRID
- 1050845762383332480
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- NII Article ID
- 120000860683
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- NII Book ID
- AA00663739
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- ISSN
- 03855414
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- NDL BIB ID
- 7225308
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL
- CiNii Articles