<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Synthetic applications of ortho esters"^^ . "The zirconocene-catalyzed rearrangement of epoxy esters to give 2,7,8-trioxabicyclo[3.2.1]octanes (ABO-esters) adds a new modification to carboxylic acid chemistry. Acid/ base-sensitive α-amino, α-hydroxy and β-bromo acid derivatives are converted in high yield to ABO-esters using this protocol. This strategy is complementary to the OBO-ester technology, and orthogonal methods for the deprotection of ABO-and OBO-esters have been developed. Using chiral epoxy alcohol derivatives, a convenient and general asymmetric synthesis of bicyclic ortho esters can be achieved. New applications of ABO-esters in organic synthesis include conjugate additions to α,β-unsaturated ortho esters and their use as homoenolate equivalents as well as the preparation of tertiary alcohols. © 1999 IUPAC."^^ . "1999-01-01" . . "71" . "3" . . "Pure and Applied Chemistry"^^ . . . "00334545" . . . . . . . . . . . . . "T"^^ . "Tsuchimoto"^^ . "T Tsuchimoto"^^ . . "H"^^ . "Takahashi"^^ . "H Takahashi"^^ . . "P"^^ . "Wipf"^^ . "P Wipf"^^ . . . . . . "Synthetic applications of ortho esters (Plain Text)"^^ . . . "licence.txt"^^ . . . "Synthetic applications of ortho esters (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #25624 \n\nSynthetic applications of ortho esters\n\n" . "text/html" . .