Kitaori, Kazuhiro published the artcileCsF in organic synthesis. A convenient synthesis of cyclopropano lactone from glycidyl nosylate, SDS of cas: 115314-17-5, the publication is Synlett (1998), 499-500, database is CAplus.
(S)-glycidyl 3-nitrobenzenesulfonate (nosylate) is transformed in 1-pot to cyclopropano lactones I (Me, Et, CH2:CHCH2, PhCH2, 4-O2NC6H4CH2) with high enantioselectivity by reaction with appropriate CH2(CO2R)2 in the presence of CsF in DMF.
Synlett published new progress about 115314-17-5. 115314-17-5 belongs to esters-buliding-blocks, auxiliary class Epoxides,Chiral,Nitro Compound,Sulfonate,Benzene, name is (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, and the molecular formula is C9H9NO6S, SDS of cas: 115314-17-5.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics