• Bulletin of the Korean Chemical Society
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• 제31권4호
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• pp.781-788
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• 2010

Experimental and theoretical studies show that all covalent azides possess a nonlinear azide group. They also rationalize this remarkable structural feature. We have seen that the most important non-covalent contributions in the covalently bound azides system (X-N1-N2-N3) are the $\pi$-delocalization over the entire molecule and a strong negative hyperconjugation which donates electron density from the filled $\sigma$ (X-N1) orbital into the unfilled, antibonding $\pi^*$ (N2-N3) orbital. For transition metal azide complexes, a bent configuration and a small difference between the N-N bond lengths, generally the longer one being adjacent to the transition metal, were observed.

• Bulletin of the Korean Chemical Society
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• 제24권2호
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• pp.249-252
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• 2003

• Bulletin of the Korean Chemical Society
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• 제35권12호
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• pp.3433-3436
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• 2014

A new method for the synthesis of 2,2-dimethyl-6-substituted 4-piperidone was developed; two equivalents of acetone were annulated with N-unsubstituted imines in-situ generated from benzyl azides using a ruthenium catalyst in the presence of $\small{L}$-proline.

• Bulletin of the Korean Chemical Society
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• 제25권3호
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• pp.420-422
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• 2004

• Archives of Pharmacal Research
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• 제16권2호
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• pp.94-98
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• 1993

Various hydrazines such as aryl-, carbonyl-, and sulfonyl-hydrazine were reacted with dinitrogen tetroxide to give the corresponding azides in excellent yields under mild ocnditions at low temperature $(-20-40^\circ{C)}$ in acetonitrile. The reaction appears to be initiated by formation of the .betha.-nitroso hydrazine intermediate which converts into the azide product.

• Bulletin of the Korean Chemical Society
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• 제24권2호
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• pp.253-255
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• 2003

• Bulletin of the Korean Chemical Society
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• 제26권11호
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• pp.1790-1794
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• 2005

Fréchet-type dendritic benzyl azides were efficiently synthesized using 5-(azidomethyl)-1,3-dihydroxybenzene as an azide focal point functionalized unit by adding a generation to the existing dendron and applied for the construction of dendrimers containing 1,2,3-triazole rings as connectors via click chemistry with a tripodal acetylene core.

• Bulletin of the Korean Chemical Society
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• 제29권8호
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• pp.1561-1564
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• 2008

Although the use of Cu(II) salts as catalysts without reductants is limited in the cycloaddition of acetylenes with azides, the catalytic system employing average 10 nm CuO(II) nanoparticles in the absence of reductants shows good catalytic activity to form 1,4-disubstituted 1,2,3-triazoles even in wet THF as well as water. It is also noticeable that CuO(II) nanoparticle catalysts can be recycled with consistent activity. A range of alkynes and azides were subject to the optimized CuO(II) nanoparticle-catalyzed cycloaddition reaction conditions to afford the desired products in good yields.

• 대한화학회지
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• 제29권4호
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• pp.437-440
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• 1985

유기아지드화물은 일산화탄소대기압하, 실온에서 높은 선택적 환원시약인 테트라카르 보닐철산염의 존재하에서 높은 수득율의 아민으로 환원되었다. 특히 벤조일아지드는 동일시약내 일산화탄소 대기압 실온에서는 에틸페닐카바메이트를 주나, -40$^{\circ}$에서는 정량적으로 벤즈아미드가 얻어졌다.

• Bulletin of the Korean Chemical Society
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• 제23권5호
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• pp.655-656
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• 2002