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- W2020176670 abstract "Bei der Reaktion von 1,2,3,4-Tetraphenyl-cyclo-5-carba-1,2,3,4-tetraphosphan (PC6H5)4CH2 1 mit Schwefel im Verhältnis 4 C6H5P:1 S bzw. 2 C6H5P:1 S entstehen die Thio-cyclo-carba-phosphane (PC6H5)4CH2S 2 bzw. (PC6H5)4CH2S2 3. Die Schwefelatome in 2 und 3 sind exocyclisch an den der CH2-Gruppe benachbarten Phosphoratomen gebunden, was ein Indiz für die Stabilität des P4C-Ringgerüstes ist. Bezüglich der Phenylsubstituenten weisen 1, 2 und 3 „all-trans”︁-Konfiguration auf. Die 31P- und 1H-NMR-Parameter für 1 und 3 werden mitgeteilt und diskutiert. Contributions to the Chemistry of Phosphorus. 65. About the Cyclocarbaphosphanes (PC6H5)4CH2, (PC6H5)4CH2S, and (PC6H5)4CH2S2 The reaction of 1,2,3,4-Tetraphenyl-cyclo-5-carba-1,2,3,4-tetraphosphane (PC6H5)4CH2 1 with sulfur in the ratio 4 C6H5P:1 S and 2 C6H5P:1 S respectively yields the Thiocyclo-carba-phosphanes (PC6H5)4CH2S 2 and (PC6H5)4CH2S2 3. The sulfur atoms in 2 and 3 are bonded in exo position to the phosphorus atoms neighbouring the CH2-group, thus indicating the stability of the P4C-ring. 1, 2, and 3 possess an “all-trans” configuration of the phenyl substituents. The 31P and 1H n.m.r. parameters of 1 and 3 are reported and discussed." @default.
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- W2020176670 title "Beitr�ge zur Chemie des Phosphors. 65. Zur Kenntnis der Cyclo-carba-phosphane (PC6H5)4CH2, (PC6H5)4CH2S und (PC6H5)4CH2S2" @default.
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- W2020176670 doi "https://doi.org/10.1002/zaac.19774310104" @default.
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