In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 39, No. 5 ( 1984-5-1), p. 632-642
Kurzfassung:
Tridentate P-N and P-O ligands of the type RP(XC 5 H 4 N) 2 (1a, b, a′, b′) [X = O, NH: R = CH 3 (a, a′), t-Bu (b, b′)] and PhP(CH 2 C 4 H 7 O) 2 (1c″) are obtained by reaction of RPCl 2 with 2-hydroxy- and 2-aminopyridine and Li 2 PPh with tetrahydrofurfuryil chloride, respectively. In a similar way the potential bidentate ligand Ph 2 PCH 2 C 4 H 7 O (2c″) is formed by the action of LiPPh 2 on ClCH 2 C 4 H 7 O. Potential tridentate ligands as RP(C 4 H 3 O) 2 (3a‴-c‴) [R = CH 3 (a‴), t-Bu (b‴), Ph (c‴)| with two furyl-phosphorus bonds can be isolated from RPCl 2 and furyllithium. The complex chemical behaviour towards Mo(CO) 6 or carbonyl derivatives of chromium was elucidated for 2c‴ and 3a‴- c‴, resulting in the formation of (OC) 5 MoPPh 2 CH 2 C 4 H 7 O (4c″) and trans-(OC) 4 Cr[RP(C 4 H 3 O) 2 ] 2 (5a‴-c‴), respectively. In the case of 5a‴ an X-ray investigation proved 3a‴-c‴ to be only monodentate P-ligands 5a‴ crystallizes in the monoclinic space group P2 1 /c with Z = 2. 1c″ is the most versatile species within this series and functions probably as a tri-, bi- and monodentate P-O ligand. With 1c″ and 3c″ some homologation experiments of methanol at 200 °C and 304 bar synthesis gas pressure were carried out
Materialart:
Online-Ressource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1984-0518
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
1984
ZDB Id:
2078109-X
ZDB Id:
124635-5
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