SILYL- AND GERMYL-DIAZADIPHOSPHETIDINES |
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| Authors: | Mark D. Noirot Elizabeth G. Bent Arlan D. Norman |
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| Affiliation: | Department of Chemistry and Biochemistry , University of Colorado , Boulder, Colorado , 80309 |
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| Abstract: | Abstract Reaction of the 1,3,2,4-diazadiphosphetidine, trans-[C6H5N(H)P(S)NC6H5]2 with LiR (R = Me, n-Bu) followed by treatment of the resulting dianions with Me3SiCl and Me3GeBr produced trans-[C6H5N(R)P(S)NC6H5]2(R = Me3Si, 2; Me3Ge, 3). Substitution occurs without cis-trans isomerization or significant cleavage of the 1,3,2,4-diazadiphosphetidine ring. 2 and 3 have been characterized by spectral (1H and 31P NMR, IR, and MS) and elemental analytical data. Analogous reactions involving Me3SnCl yield mixtures containing [C6H5N(SnMe3)P(S)NC6H5]2 which could not be isolated or completely characterized. |
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| Keywords: | 1,3,2,4-diazadiphosphetidines silyl- germyl- phosphorus polymer percursors synthesis |
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