Journal of Organometallic Chemistry p. 53 - 67 (1985)
Update date:2022-08-03
Topics:
Borm, Jutta
Huttner, Gottfried
Orama, Olli
Zsolnai, Laszlo
The diphosphene compound [(CO)5Cr]2PhPPPh (II), which is formed from [(CO)5Cr]3PhPPPh (I) at 70°C, reacts with HX (X = OH, OMe, NHBu, Cl) to give the diphosphane species [(CO)5Cr]2PhP(H)-(X)PPh (III) with complete threoselectivity. Addition of Br2 to II leads to a mixture of both diastereoisomeric forms of [(CO)5Cr]2PhP(Br)(Br)PPh (IV). Sulfur adds in an erythro-selective 2+1- cycloaddition, yielding the thiadiphosphirane compound Va. Similarly, CH2N2 gives the diphosphirane complex Vb. 2 + 4-Cycloadditions of cyclopentadiene or 2,3-dimethylbutadiene lead to the expected Diels-Alder type addition products VI. The novel compounds have been characterized by analytical and spectroscopic data as well as five X-ray structural analyses.
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(1983)Doi:10.1080/15533170500358234
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(1983)Doi:10.1016/j.bmcl.2008.09.003
(2008)Doi:10.1246/cl.1983.1909
(1983)Doi:10.1007/BF00515354
(1983)
