• Bulletin of the Korean Chemical Society
• /
• v.34 no.6
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• pp.1864-1866
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• 2013

• Journal of Photoscience
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• v.1 no.1
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• pp.53-59
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• 1994

Molecular orientation and polarity of solubilization site of dipolar azobenzenes solubilized in micellar solutions are discussed. The polarity of solubilization was estimated by using Taft $\pi$$^*$ scale with linear solvation energy relationship, $\Delta$E=$\Delta$E$_0$ + S($\pi$$^*$ + d$\delta$)+a$\alpha$ + b$\beta$. Hydrogen bonding effects were taken into account for the estimation of micropolarity. The polarity that azobenzenes experienced in the miceliar solutions was close to water which represented that the azobenzenes were mostly solubilized at the interface. For the orientations of azobenzenes were concerned, the nitro group of NPNOH faced the interface and the hydroxy group of NPNO$^-$ located at the interfacial area.

• Bulletin of the Korean Chemical Society
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• v.34 no.12
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• pp.3895-3898
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• 2013

• Journal of the Korean Chemical Society
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• v.33 no.6
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• pp.669-672
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• 1989

• Proceedings of the Korean Magnestics Society Conference
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• 2004.06a
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• pp.192-192
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• 2004

• Journal of the Korean Chemical Society
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• v.35 no.3
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• pp.262-267
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• 1991

Bromo-acivicin derivative(17) and its homologs(15,16,8) were synthesized by 1,3-dipolar cycloaddition of vinyl glycine derivative(13) and allylglycine derivatives(9,12), respectively, with bromonitrile oxide(5).

• Bulletin of the Korean Chemical Society
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• v.27 no.11
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• pp.1861-1864
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• 2006

• Proceedings of the Korean Magnestics Society Conference
• /
• 2011.12a
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• pp.15-16
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• 2011

• Proceedings of the Korean Magnestics Society Conference
• /
• 2008.12a
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• pp.177.1-177.1
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• 2008

• Bulletin of the Korean Chemical Society
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• v.17 no.4
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• pp.314-321
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• 1996

Isoxazolidine derivatives 7 and 8 were synthesized from N-benzyl-C-(2-benzyloxyethyl)nitrones by 1,3-dipolar cycloaddition with ethyl crotonate. The isoxazolidine derivatives were converted to β-amino acid esters 9a and 9b by reduction with zinc in acetic acid. The β-amino acid esters were reacted with methylmagnesium bromide to give the 2-azetidinones (13a, 13b). The benzyl group of 2-azetidinones were removed by Birch reduction. The products were oxidized with PDC to give 3-[1-(t-butyldimethylsilyloxy)ethyl]-4-carboxymethyl-2-azetidinone derivatives (2a, 2c).