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Cyclic organophosphorus compounds. XVIII —the mass spectroscopy of some 2‐amino‐1,3,2‐dioxaphosphorinans, cyclic phosphorodiamidates and phosphorodiamidothionates
Author(s) -
Edmundson R. S.
Publication year - 1983
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210180404
Subject(s) - cyclohexanes , ion , chemistry , ring (chemistry) , abundance (ecology) , x ray photoelectron spectroscopy , medicinal chemistry , stereochemistry , organic chemistry , nuclear magnetic resonance , physics , fishery , biology
Stepwise replacement of O in 1,3‐dioxa‐2‐phospha(V)‐cyclohexanes (or related ring systems) by NR (R=H or Me) leads to an increase in the stability of the hetero‐ring ions produced under electron impact conditions. In the case of the 2‐phenoxy derivatives, there is also an increased abundance of [MPhO] + or [MPhOH] + ions, and, for the 2‐sulphides, a reduction in the abundance of [M‐S] +˙ and [M‐SH] + ions, with a concurrent increase in that of [M‐PhS] + ions. Such trends have been correlated with ultraviolet photoelectron spectral data on a qualitative basis.