A novel method for the synthesis of 3,4-disubstitutedpyrrole-2,5-dicarboxylates from hydrazones derived from α-diazo esters
✍ Scribed by Yasui, Eiko; Wada, Masao; Nagumo, Shinji; Takamura, Norio
- Book ID
- 120086497
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- French
- Weight
- 670 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0040-4020
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reactions of ethyl 2-diazoacetate with aldehydo sugars and monosaccharide derivatives in their hemiacetal form are reported. The use of diethyl zinc led to an improvement of yields and shorter reaction times compared with neutral conditions as previously described. The resulting products represent p
The reaction of 3,6-diaryl-1,2,4,5-tetrazines and 2-aryl substituted acetonitriles, under basic conditions, leads unexpectedly to 3,5-diaryl-(NH)-1,2,4-triazoles in moderate yields. A mechanism is proposed.