1981
DOI: 10.1002/zaac.19814800916
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Beiträge zur Chemie des Phosphors. 104. Synthese und Eigenschaften von 1,3‐Dihalogen‐1,2,3‐tritert‐butyltriphosphanen (t‐BuP)3X2, X = Cl, Br, I

Abstract: Die halogenierende Ringspaltung von Tri‐tert‐butyl‐cyclotriphosphan, (t‐BuP)3, mit Iod, Brom bzw. Phosphor(V)‐bromid sowie Phosphor(V)‐chlorid führt zu den ersten 1,3‐Dihalogen‐1,2,3‐triorganyltriphosphanen (t‐BuP)3I2 (1), (t‐BuP)3Br2 (2) und (t‐BuP)3Cl2 (3). Als Nebenprodukte treten die 1,2‐Dihalogen‐1,2‐di‐tert‐butyldiphosphane (t‐BuP)2I2 (4), (t‐BuP)2Br2 (6) und (t‐BuP)2Cl2 (9) sowie die Dihalogen‐tert‐butylphosphane t‐BuPI2 (5), t‐BuPBr2 (7) und t‐BuPCl2 (10) auf. Die Umsetzung von (t‐BuP)3 mit PBr5 führt … Show more

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Cited by 37 publications
(13 citation statements)
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“…Ein Phosphandiyl-Transfer auf das PC-Doppelbindungssystem wird ebenfalls bei der Umsetzung von 12a mit in situ erzeugtem tert-Butylchlorphosphan (20) 22) …”
unclassified
“…Ein Phosphandiyl-Transfer auf das PC-Doppelbindungssystem wird ebenfalls bei der Umsetzung von 12a mit in situ erzeugtem tert-Butylchlorphosphan (20) 22) …”
unclassified
“…When solutions of P 3 t Bu 3 in 1:1 (v/v) MeCN/PhMe were heated to 90 °C with a variety of electrophiles (15 mol % relative to P 3 t Bu 3 ), we observed 80–100 % conversion of P 3 t Bu 3 into either P 4 t Bu 4 or a mixture of P 4 t Bu 4 , and the desired nitrile‐cyclophosphine addition product 2 Me (Table ). The observation that Brønsted acids are catalytically active (entries 1 and 2) is particularly interesting considering the previous report by Baudler and Hellmann on the stoichiometric reactivity between P 3 t Bu 3 and HCl in THF to form the ring‐opened linear species H( t Bu)P‐P( t Bu)‐P( t Bu)Cl . The ratio of 2 Me to P 4 t Bu 4 varied significantly between the electrophiles tested.…”
Section: Methodsmentioning
confidence: 58%
“…Synthesis of 1,1‐dimethylethyldibromophosphane, which is more commonly named tert ‐butyl‐dibromophosphane, was reported early as a by‐product in the synthesis of triphosphanes . The synthesis of t BuPBr 2 was then carried out a few years later, and subsequently, its complexation and the use in cyclotriphosphane synthesis was explored by the same group .…”
Section: Synthesis Of 11‐dimethylethyldibromophosphane Tbupbr2mentioning
confidence: 99%