ISSN:
0009-2940
Keywords:
Ligand exchange at silicon
;
Silicon iron complexes
;
Oxofunctionalization
;
Metallo silanols
;
Diastereoselective synthesis
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Synthesis and Reactivity of Silicon Transition Metal Complexes, 3534. Mitteilung: W. Malisch, R. Lankat, W. Seelbach, J. Reising, M. Noltemeyer, R. Pikl, U. Posset, W. Kiefer, Chem. Ber., 1995, 128, 1109. . - Metallo Silanols and Metallo Siloxanes, 9 8. Mitteilung: W. Malisch, S. Schmitzer, R. Lankat, M. Neumayer, F. Prechtl, W. Adam, Chem. Ber., 1995, 128, 1251, voranstehend. . - Synthesis of the Diastereomerically Pure Ferrio Silanol (RS,SR)-Cp(OC)(Ph3P)Fe-Si(Me)(Ph)(OH) and Structure of (RR,SS)-Cp(OC)(Ph3P)Fe-Si(Me)(Ph)Cl Herrn Professor Max Schmidt zum 70. Geburtstag gewidmet.Irradiation of the ferrio chlorosilane Cp(OC)2Fe-Si(Me)-(Ph)Cl (1) in the presence of Ph3P leads to Cp(OC)(Ph3P)-Fe-Si(Me)(Ph)Cl (2) which is formed as a mixture of diastereomers separated by crystallization. Pure (RR,SS)-2 is converted highly stereoselectively into (RR,SS)-Cp(OC)(Ph3P)-Fe-Si(Me)(Ph)H (3) with LiAlH4, and further with dimethyldioxirane into (RS,SR)-Cp(OC)(Ph3P)Fe-Si(Me)(Ph)(OH) (4). This ferrio silanol diasteromer is alternatively obtained by Cl/OH exchange with KOH from 2. Diastereomerically pure (RR,SS)-2 is characterized by a single-crystal structure analysis.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951281218
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