ISSN:
0009-2940
Schlagwort(e):
Phosphanylnaphthol
;
PO ligands
;
Chelate complexes
;
Chemistry
;
Inorganic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
P-tertiary or amino-substituted 1-phosphanylnaphth-2-yl silyl ethers 3 are synthesized by stepwise reaction of lithium 1-lithio-2-naphtholate 1 with chlorophosphanes and ClSiMe3. The free phosphanylnaphthols 4 are prepared by alcoholysis. As established by characteristic coupling constants and X-ray structural analyses (of 3c, 4c), 3 exhibit in solution and in the solid state a cis-bisecting conformation, whereas 4 prefers the opposite trans-bisecting arrangement, allowing easy protonation and formation of chelate complexes. Substitution reactions of phosphanylnaphtholates 2 with Ph2PCl and formation of chelate complexes LNi-η5-Cp and L2Pd are described. Attempts to prepare secondary and primary phosphanylnaphthols failed because of facile cleavage of the P-C(naphthyl) bond in PH-substituted 1-phosphanylnaphth-2-ols.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/cber.19961290914
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