93796-39-5Relevant articles and documents
SYNTHESIS OF DISODIUM PREPHENATE
Ramage, Robert,MacLeod, Angus M.
, p. 3251 - 3258 (2007/10/02)
An efficient synthesis of disodium prephenate is described which illustrates the use of 5-ylidene-1,3-dioxalan-4-ones for the synthesis of acid labile α-keto acids.
Dioxolanones as Synthetic Intermediates. Part 1. Synthesis of α-Keto Acids, α-Keto Aldehydes, and α-Ketols
Ramage, Robert,Griffiths, Gareth J.,Shutt, Fiona E.,Sweeney, John N. A.
, p. 1531 - 1537 (2007/10/02)
2,2-Pentamethylene-1,3-dioxolan-4-one (10) has been elaborated to provide 5'-ylidene derivatives using a Wittig approach.This apparently novel class of compounds is subject to nucleophilic attack at the 4-position because of strain inherent in the 5-membered ring.Thus alkaline hydrolysis leads to the formation of α-keto acids; hydride reduction of dioxolanones incorporating conjugated aryl substituents using di-isobutylaluminium hydride leads to α-keto-aldehydes; the reaction of dioxolanone (15) with methylmagnesium iodide gave the α-ketol (40).