117917-89-2Relevant academic research and scientific papers
Asymmetric Hetero Diels-Alder Reactions in Aqueous Solution Using Amino Acid Esters as Chiral Auxiliaries
Waldmann, Herbert
, p. 231 - 238 (2007/10/02)
(R)- and (S)-amino acid methyl ester hydrochlorides form with formaldehyde in THF/water mixtures iminium ions, which react already at 0 deg C as electron-deficient dienophiles in hetero Diels-Alder reactions with cyclopentadiene, cyclohexadiene, and open-
