G. Fronza et al., ON THE MECHANISM OF THE FORMATION OF TETRAHYDROFURANS FROM 1,4-DIOLS MEDIATED BY TRIPHENYLPHOSPHINE AND N-BROMOSUCCINIMIDE, Tetrahedron letters, 34(18), 1993, pp. 2981-2984
The conversion of yeast generated (1S) [1,5-H-2(2)] 1 into tetrahydrof
uran mediated by triphenylphosphine and N-bromosuccinimide occurs with
inversion at position 1, as indicated by NMR studies on 2.