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Steric hindrance in the synthesis and properties of the dimer of 1-(2,4,6-Tri-tert-butylphenyl)phosphole 1-oxide

✍ Scribed by György Keglevich*; László Toke; Zsolt Böcskei; Veronika Harmat

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 210 KB
Volume: 8
Category: Article
ISSN: 1042-7163
DOI: 10.1002/(sici)1098-1071(1997)8:6<527::aid-hc12>3.0.co;2-t

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✦ Synopsis

Steric hindrance was observed during the oxidation of 2,4,6-tri-tert-butylphenylphosphole to the P oxide and in the dimerization of this latter species to the corresponding phosphanorbornene derivative. Single-crystal X-ray analysis of the dimer revealed considerable steric crowding around the P atoms. Deoxygenation of the dimer of the phosphole oxide by Cl 3 SiH-C 6 H 5 N could only be accomplished under forcing conditions at 110ЊC.

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