1992
DOI: 10.1002/zaac.19926110507
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Beiträge zur Chemie des Phosphors. 219 [1]. Tetraisopropyl‐octadecaphosphan(4), P18i‐Pr4 – Darstellung und kernresonanzspektroskopische Strukturbestimmung

Abstract: Tetraisopropyl‐octadecaphosphan(4) (1) wurde durch Reaktion von i‐PrPCl2, P4 und Magnesium und anschließende Thermolyse des Rohproduktes gewonnen und in 95proz. Reinheit isoliert. Nach kernresonanzspektroskopischen Untersuchungen enthält 1 ein Konjunkto‐Phosphangerüst aus einem P11(5)‐und einem Deltacyclan‐analogen P9(3)‐Strukturelement, die eine P2‐Brücke gemeinsam haben. Demnach handelt es sich bei 1 um 8,14,16,18‐Tetraisopropyl‐octacyclo[13.2.1.02,13.03,11.04,9.05,7.0 6,10.012,17]octadecaphosphan. Verbindun… Show more

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Cited by 10 publications
(2 citation statements)
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“…The octacyclooc£adecaphosphane(4) 90 was obtained in 95% purity by the "standard procedure" (dehalogenation according to eq 60, subsequent thermolysis, and separation of the thermolysate). 334 The bright skeleton made up of a Pn(5) and a brexane-type fe-P9( 5) element annelated at their P2 bridges, thus forming a central, pentalane-type P8 (6) partial structure as is also present in Hittorf s phosphorus. Hence, compound 88 is 5,7,8,14,16,18-hexaisopropylheptacyclo[13.2.1.02-13.-03,u.04'9.06'10.012 '17] octadecaphosphane.…”
Section: B Methods Of Preparationmentioning
confidence: 99%
“…The octacyclooc£adecaphosphane(4) 90 was obtained in 95% purity by the "standard procedure" (dehalogenation according to eq 60, subsequent thermolysis, and separation of the thermolysate). 334 The bright skeleton made up of a Pn(5) and a brexane-type fe-P9( 5) element annelated at their P2 bridges, thus forming a central, pentalane-type P8 (6) partial structure as is also present in Hittorf s phosphorus. Hence, compound 88 is 5,7,8,14,16,18-hexaisopropylheptacyclo[13.2.1.02-13.-03,u.04'9.06'10.012 '17] octadecaphosphane.…”
Section: B Methods Of Preparationmentioning
confidence: 99%
“…The nature and distribution of the products depends considerably on the bulkiness of the organic group and on the reaction conditions. Thus, the reduction of iPrPCl 2 with Mg in the presence of P 4 followed by thermolysis of the reaction mixture leads, depending on the reaction conditions, to the polycyclic phosphanes P 11 iPr 3 , 121 P 11 iPr 5 , 122 P 12 iPr 4 , 123,124 P 13 iPr 5 , 123 P 14 iPr 4 , 125 P 14 iPr 6 , 126 P 18 iPr 6 , 127 and P 20 iPr 6 . 128 Similarly, the reduction of RPCl 2 (R ) Me, Et) with Mg in the presence of P 4 leads, among monocyclic phosphanes, 42 to P 9 R 5 , P 10 R 6 , P 10 R 4 , P 11 R 5 , P 12 R 4 , and P 13 R 5 (R ) Me, Et, CHMe 2 ).…”
Section: Hpmentioning
confidence: 99%