ISSN:
1042-7163
Keywords:
Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Spectroscopic analysis of lithiated cyclic phospho-nates belonging to the 1,3,2-dioxaphosphorinane 2-oxide class have been examined by NMR spectroscopy in THF and by single-crystal X-ray crystallography. Lithio P-benzyl-1,3,2-dioxaphosphorinane 2-oxide (Li+7-) and lithio P-isopropyl-1,3,2-dioxaphosphorinane 2-oxide (Li+8-) are characterized by freely rotating, sp2-hybridized anions devoid of lithium-carbon contacts. The anions are most likely dimers linked through oxygen-lithium bridges. The P-isopropyl compound crystallized from TMEDA/THF as a C-lithiated dimer in which each lithium bridges a carbon and an oxygen and is solvated by one TMEDA molecule. © 1998 John Wiley & Sons, Inc. Heteroatom Chem 9:209-218, 1998
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
Permalink