134407-31-1Relevant articles and documents
Practical synthesis of 2,5-disubstituted 1,3-dioxolane-4-ones and highly diastereoselective cis-2,5-disubstituted 1,3-dioxolane-4-ones from α-hydroxy acids catalyzed by N-triflylphosphoramide
Kü?ük, Hatice Ba?pinar
supporting information, p. 5583 - 5586 (2015/09/21)
N-triflylphosphoramide (NTPA) was found to be an efficient Br?nsted acid catalyst for the practical synthesis of 2,5-disubstituted 1,3-dioxolane-4-ones. Racemic and optically pure mandelic acid and lactic acid could be protected using several aldehydes in