Asymmetric total synthesis of 14(R),15(S)-, 14(S),15(R)-, 14(R),15(R)-, and 14(S),15(S)-epoxyeicosatrienoic acids
作者:Michael D. Ennis、Mark E. Baze
DOI:10.1016/s0040-4039(00)85390-3
日期:1986.1
The four chiral stereoisomers of 14,15-oxido-5Z, 8Z, 11Z-eicosatrienoic acid were synthesized. The absolute stereochemistry in each case was derived from an asymmetric epoxidation of E-2-octen-1-ol.
Tungsten-, Molybdenum-, and Cerium-Promoted Regioselective and Stereospecific Halogenation of 2,3-Epoxy Alcohols and 2,3-Epoxy Sulfonamides
作者:Chuan Wang、Hisashi Yamamoto
DOI:10.1021/ol503091n
日期:2014.11.21
The first catalytic regioselective and stereospecific halogenation of 2,3-epoxy alcohols and 2,3-epoxy sulfonamides has been developed. Under the catalysis of commercially available W- or Mo-salts, complemented by the method using cerium halides, the C-3 selective ring opening of structurally diverse epoxides with Cl-, Br-, and I-nucleophiles afforded various halohydrins in good yields and high regioselectivities.