Pentafluoro phosphorane

Phosphorane Diethylamino-(pentafluoro-phcnyl)-trif(uoro-E10b, 432f. (Educt)... 

Phosphorane (Pentafluoro-1-trifluoromethyJ-propylid en)-tributyl- ElOb,. 665 ( 17 - ... 

The n.m.r. spectra of (71) and (72) show no changes in the temperature range +30° to +100°, at which point irreversible decomposition of the molecules become apparent. The n.m.r. data of these and of related phosphoranes are summarized in Table 15. The syntheses of (47) and of (64) were described above.111,114 Their variable temperature proton n.m.r. will be discussed in the appropriate sections corresponding to the symmetry properties of the molecule. Note, for further reference, the Permutational Description- " of the energetically preferred isomer (47-(l 5)) of the 1,4,2-dioxaphospholane with the cis-H/H configuration, made from the reaction of trimethyl phosphite with pentafluoro-benzaldehyde. 

---

See also in sourсe #XX -- [ , ]

---