SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS

Jutzi P, OPIELA S (1992)
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 610(4): 75-82.

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Via the reaction of bis-(pentamethylcyclopentadienyl)diphosphene [Cp*P=PCP*, 1] and 1-(pentamethylcyclopentadienyl)-2-(2,4,6-tri(t)butylphenyl)-diphosphene [Cp*P=PMes*, 2] with the diazomethanes N2CHR [R=H, Si(CH3)3] the four new diphosphiranes Cp*PPCp*CHSi(CH3)3, 4a, Cp*PPMes*CHSi(CH3)3, 4b, Cp*PPCp*CH2, 5a, Cp*PPMes*CH2, 5b, are obtained. The formation of 4a results via a 2 + 3-cyclo-addition product, which could be proved by nmr spectroscopy. The reaction of As-(pentamethylcyclopentadienyl)P-(2,4,6-tri(t)butylphenyl)arsaphosphene [Cp*As=PMes*, 3] with diazomethane leads to 1-(pentamethylcyclopentadienyl)-2-(2,4,6-tri(t)butylphenyl)-1-arsa-2-pho sphacyclopropane [phospharsiran, Cp*AsPMes*CH2, 61. Analysis of the structures by nmr spectroscopy gives clear evidence for a trans-orientation of the substituents at the El-P bond (El=As, P) in all of the three membered ring systems. For the diphosphirane Cp*PPCp*CH2 (5a) a Cp*-phosphorus bond cleavage by thermolysis cannot be observed. From the reaction of compound 5a with Cr(CO),thf one obtains 1-(pentacarbonylchrom)-1,2-bis(pentamethylcyclopentadienyl)-1,2-diphosph acyclopropane, 7.
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Jutzi P, OPIELA S. SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE. 1992;610(4):75-82.
Jutzi, P., & OPIELA, S. (1992). SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 610(4), 75-82.
Jutzi, P., and OPIELA, S. (1992). SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 610, 75-82.
Jutzi, P., & OPIELA, S., 1992. SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 610(4), p 75-82.
P. Jutzi and S. OPIELA, “SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS”, ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, vol. 610, 1992, pp. 75-82.
Jutzi, P., OPIELA, S.: SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE. 610, 75-82 (1992).
Jutzi, Peter, and OPIELA, S. “SYNTHESIS AND PROPERTIES OF PENTAMETHYLCYCLOPENTADIENYLSUBSTITUTED PPC AND ASPC 3-MEMBERED RINGS”. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 610.4 (1992): 75-82.
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