104926-27-4Relevant academic research and scientific papers
Asymmetric α-Acetoxylation of Carboxylic Esters
Oppolzer, Wolfgang,Dudfield, Philip
, p. 216 - 219 (1985)
Using the readily accessible chiral auxiliaries 1-3 the sulfonamide-shielded O-silylated esters 5 underwent ?-face-selective α-acetoxylation on successive treatment with Pb(OAc)4 and NEt3*HF to give after recrystallization α-acetoxy ester 6 in 55-66percen
ASYMMETRIC HALOGENATION OF CAMPHOR-10-SULFONIC ACID DERIVED ESTERS: AN EFFICIENT NEW ROUTE TO ENANTIOMERICALLY PURE HALOHYDRINS AND EPOXIDES.
Oppolzer, Wolfgang,Dudfield, Philip
, p. 5037 - 5040 (2007/10/02)
Successive treatment of chiral esters 1 with LDA/Me3SiCl and NBS or NCS gave crystalline α-haloesters 3 which furnished halohydrins 4 and terminal epoxides 5 in high e.e..
