• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 제5회 영호남 학술대회 논문집
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• pp.110-113
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• 2003

We report herein synthetic results obtained six new types of bis-benzocrown ethers containing imine group. Bis crown ethers l~3 are aminobenzo-15-crown-5-ether linked with terephthalaldehyde, isophthalaldehyde, phthaldehyde respectively by imine reaction. Bis crown ethers l~3 are different distances in each crown ether rings. Bis crown ether 4 has large cavity in crown ethers. Functionalized crown ether 5 is synthesized amonobenzo-l5-crown-5-ether and terephthaladehyde same ratio at one to one. Bis crown ether 6 has phothosensitive linkage between crown ethers. Bis crown ether 7 is prepared by amonobenzo-l5-crown-5-ether and triethyl ortho formate. 4'-Nitrobenzo-crown ethers and 3',4'-dinitrobenzo-crown ethers were prepared by nitration of benzo crown ethers, obtained from the reaction of catechol and oligoethylene glycol ditosylate. Crown ethers containing aldehyde group were synthesized from the reaction of 3,4-dihydroxybenzaldehyde and corresponding ditosylate respectively. The synthesized crown ethers were characterized respectively by IR, NMR. GC-Mass.

• 한국산업융합학회 논문집
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• 제6권1호
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• pp.73-80
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• 2003

We report herein synthetic results obtained six new types of bis-benzocrown ethers containing imine group. Bis crown ethers1~3 are aminobenzo-15-crown-5-ether linked with terephthalaldehyde, isophthalaldehyde, phthaldehyde respectively by imine reaction. Bis crown ethers1~3 are different distances in each crown ether rings. Bis crown ether 4 has large cavity in crown ethers. Functionalized crown ether 5 is synthesized amonobenzo-15-crown-5-ether and terephthaladehyde same ratio at one to one. Bis crown ether 6 has photosensitive linkage between crown ethers. Bis crown ether 7 is prepared by amonobenzo-15-crown-5-ether and triethyl ortho formate. 4'-Nitrobenzo-crown ethers and 3',4'-dinitrobenzo-crown ethers were prepared by nitration of benzo crown ethers, obtained from the reaction of catechol and oligoethylene glycol ditosylate. Crown ethers containing aldehyde group were synthesized from the reaction of 3,4-dihydroxybenzaldehyde and corresponding ditosylate respectively. The synthesized crown ethers were characterized respectively by IR, NMR, GC-Mass.

• Applied Biological Chemistry
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• 제39권1호
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• pp.84-88
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• 1996

벼의 생육 단계별 brassinolide의 검정을 위하여 HPLC 형광분석법을 개발하였다. 형광분석에 민감한 1-cyanoisoindole-2-m-phenylboronic acid를 o-phthalaldehyde와 m-phenylbornic acid 및 KCN과 반응시켜 합성하여 brassinolide의 1, 2-diol과 유도체화 시켰다. Brassinolide $1\;{\mu}g$에 대한 1-cyanoisoindole-2-m-phenylboronic acid의 brassinolide boronate의 형성정도는 $20\;{\mu}g$에서 90% 이상의 유도체화를 보였고 형광검출법에 의한 brassinolide의 검출한계는 0.16 ng이었다. 벼의 생육단계별 brassinolide는 분얼기 및 신장기에서는 검출이 되지 않았으며 유수형성기에는 $0.8\;{\mu}g$(생체 10g)이 그리고 출수개화기에는 $0.2\;{\mu}g$(생체 10g)이 검출되었다.