Tetrahedron Letters p. 2953 - 2956 (1990)
Update date:2022-08-05
Topics:
Hoffmann, Robert V.
Kim, Hwa-Ok
Chiral 2-triflyloxy esters, prepared from chiral 2-hydroxy esters, react enantiospecifically with BocNHNH2 to produce optically pure 2-hydrazinyl ester derivatives in high yields.The reaction of 2-nosyloxy esters with BocNHNH2 gives 2-(Boc-hydrazinyl) esters, thus providing an efficient (albeit slow) method for the conversion of esters to 2-hydrazinyl ester derivatives.
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