Published April 13, 2013
| Version v1
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Cyclization of 1,2:3,4-di-O-isopropylidene-α-D-galacto-1,6-hexodialdo-1,5-pyranose acylhydrazone and semicarbazone
- 1. University of Buenos Aires
- 2. Comisión Nacional de Energía Atómica
- 3. Fundación Ciencias Exactas y Naturales
- 4. Consejo Nacional de Investigaciones Científicas y Técnicas
Description
Cyclization of1,2:3,4-di-O-isopropylidene--D-galacto-1,6-hexodialdo-1,5-pyranose benzoylhydrazone using acetylating mixtures led us to the corresponding (2R)-and (2S)-5phenyl-1,3,4-oxadiazoline derivatives.The same conditions applied to the semicarbazone produced the 5-methyl-1,3,4-oxadiazoline derivative as the main compound, which is formed with acetylating mixtures even at room temperature.X-Ray analysis and NMR techniques were used to determine the stereochemistry of the new asymmetric centers.
Translated Descriptions
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This is an automatic machine translation with an accuracy of 90-95%
Translated Description (Arabic)
تدوير 1,2: 3,4 - di - O - isopropylidene -- D - galacto -1,6 - hexodialdo -1,5 - pyranose benzoylhydrazone باستخدام خلائط الأسيتيلات أدى بنا إلى (2R) - و (2S) -5phenyl -1,3,4 - oxadiazoline المشتقات المقابلة. نفس الشروط المطبقة على سيميكاربازون أنتجت مشتق 5 - methyl -1,3,4 - oxadiazoline كمركب رئيسي، والذي يتكون من خلائط الأسيتيلات في درجة حرارة الغرفة. تم استخدام تقنيات تحليل الأشعة السينية والرنين المغناطيسي النووي لتحديد الكيمياء الفراغية للمراكز الجديدة غير المتماثلة.Translated Description (English)
Cyclization of 1,2: 3,4-di-O-isopropylidene--D-galacto-1,6-hexodialdo-1,5-pyranose benzoylhydrazone using acetylating mixtures led us to the corresponding (2R)-and (2S) -5phenyl-1,3,4-oxadiazoline derivatives. The same conditions applied to the semicarbazone produced the 5-methyl-1,3,4-oxadiazoline derivative as the main compound, which is formed with acetylating mixtures at even room temperature. X-Ray analysis and NMR techniques were used to determine the stereochemistry of the new asymmetric centers.Translated Description (French)
Cyclization of1,2:3,4-di-O-isopropylidene--D-galacto-1,6-hexodialdo-1,5-pyranose benzoylhydrazone using acetylating mixtures led us to the corresponding (2R)-and (2S) -5phenyl-1,3,4-oxadiazoline derivatives.The same conditions applied to the semicarbazone produced the 5-methyl-1,3,4-oxadiazoline derivative as the main compound, which is formed with acetylating mixtures even at room temperature.X-Ray analysis and NMR techniques were used to determine the stereochemistry of the new asymmetric centers.Translated Description (Spanish)
Cyclization of1,2:3,4-di-O-isopropylidene--D-galacto-1,6-hexodialdo-1,5-pyranose benzoylhydrazone using acetylating mixtures led us to the corresponding (2R)-and (2S) -5phenyl-1,3,4-oxadiazoline derivatives.The same conditions applied to the semicarbazone produced the 5-methyl-1,3,4-oxadiazoline derivative as the main compound, which is formed with acetylating mixtures even at room temperature.X-Ray analysis and NMR techniques were used to determine the stereochemistry of the new asymmetric centers.Files
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Additional details
Additional titles
- Translated title (Arabic)
- تدوير 1,2: 3,4 - di - O - isopropylidene - α - D - galacto -1,6 - hexodialdo -1,5 - pyranose acylhydrazone and semicarbazone
- Translated title (English)
- Cyclization of 1,2:3,4-di-O-isopropylidene-α-D-galacto-1,6-hexodialdo-1,5-pyranose acylhydrazone and semicarbazone
- Translated title (French)
- Cyclisation de 1,2:3,4-di-O-isopropylidène-α-D-galacto-1,6-hexodialdo-1,5-pyranose acylhydrazone et semi-carbazone
- Translated title (Spanish)
- Cyclization of 1,2:3,4-di-O-isopropylidene-α-D-galacto-1,6-hexodialdo-1,5-pyranose acylhydrazone and semicarbazone
Identifiers
- Other
- https://openalex.org/W2517889693
- DOI
- 10.3998/ark.5550190.0014.311
References
- https://openalex.org/W1968602028
- https://openalex.org/W2050123726
- https://openalex.org/W2069972669
- https://openalex.org/W2166689829
- https://openalex.org/W2949731375
- https://openalex.org/W2952887281
- https://openalex.org/W4240837611
- https://openalex.org/W4245392119