2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenyl-phosphonium bromide

Noboru Morita; Shiro Moriyama; Kozo Toyota; Masataka Watanabe; Shigeru Kikuchi; Shunji Ito; Kunihide Fujimori

doi:10.3987/COM-10-S(E)74

2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenyl-phosphonium bromide

Noboru Morita, Shiro Moriyama, Kozo Toyota, Masataka Watanabe, Shigeru Kikuchi, Shunji Ito, Kunihide Fujimori

SCI - Chemistry

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

2-[1,3-Bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenylphosphonium bromide was prepared from diethyl 6-ethynyl-1,3-azulenedicarboxylate. Its NMR spectroscopic property was made clear. Furthermore, its reactivity with o-substituted aniline was studied, comparing with 1-and 2-ethynyl azulene derivatives. We found that 2-[3-(methoxycarbonyl)azulen-1-yl]ethynyltriphenyl- phosphonium bromide also reacted with o-substituted anilines in CHCl₃ to give corresponding 2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]benzoazoles. However, in DMSO another products were obtained.

Original language	English
Pages (from-to)	1283-1296
Number of pages	14
Journal	Heterocycles
Volume	82
Issue number	2
DOIs	https://doi.org/10.3987/COM-10-S(E)74
Publication status	Published - 2010 Feb 28

ASJC Scopus subject areas

Analytical Chemistry
Pharmacology
Organic Chemistry

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abstract = "2-[1,3-Bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenylphosphonium bromide was prepared from diethyl 6-ethynyl-1,3-azulenedicarboxylate. Its NMR spectroscopic property was made clear. Furthermore, its reactivity with o-substituted aniline was studied, comparing with 1-and 2-ethynyl azulene derivatives. We found that 2-[3-(methoxycarbonyl)azulen-1-yl]ethynyltriphenyl- phosphonium bromide also reacted with o-substituted anilines in CHCl3 to give corresponding 2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]benzoazoles. However, in DMSO another products were obtained.",

author = "Noboru Morita and Shiro Moriyama and Kozo Toyota and Masataka Watanabe and Shigeru Kikuchi and Shunji Ito and Kunihide Fujimori",

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T1 - 2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenyl-phosphonium bromide

AU - Morita, Noboru

AU - Moriyama, Shiro

AU - Toyota, Kozo

AU - Watanabe, Masataka

AU - Kikuchi, Shigeru

AU - Ito, Shunji

AU - Fujimori, Kunihide

PY - 2010/2/28

Y1 - 2010/2/28

N2 - 2-[1,3-Bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenylphosphonium bromide was prepared from diethyl 6-ethynyl-1,3-azulenedicarboxylate. Its NMR spectroscopic property was made clear. Furthermore, its reactivity with o-substituted aniline was studied, comparing with 1-and 2-ethynyl azulene derivatives. We found that 2-[3-(methoxycarbonyl)azulen-1-yl]ethynyltriphenyl- phosphonium bromide also reacted with o-substituted anilines in CHCl3 to give corresponding 2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]benzoazoles. However, in DMSO another products were obtained.

AB - 2-[1,3-Bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenylphosphonium bromide was prepared from diethyl 6-ethynyl-1,3-azulenedicarboxylate. Its NMR spectroscopic property was made clear. Furthermore, its reactivity with o-substituted aniline was studied, comparing with 1-and 2-ethynyl azulene derivatives. We found that 2-[3-(methoxycarbonyl)azulen-1-yl]ethynyltriphenyl- phosphonium bromide also reacted with o-substituted anilines in CHCl3 to give corresponding 2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]benzoazoles. However, in DMSO another products were obtained.

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2-[1,3-bis(ethoxycarbonyl)azulen-6-yl]ethynyltriphenyl-phosphonium bromide

Abstract

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