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[1,5] Sigmatropic shifts in a 1,4-diphospholylbenzene

✍ Scribed by François Mercier; François Mathey

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 287 KB
Volume: 1
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.520010211

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✦ Synopsis

The central phenylene ring o f I ,4-bis(3,4-dimethylphosphol-1-yobenzene undergoes [ I ,5] shifts around both phospholyl rings above 150°C to give 1,4-bis(3,4-dimethyl-SH-phosphol-2-yl)benzene, which can be trapped by tolane, [CpFe(CO)zlz, or Mn2 (CO)lo to yield the corresponding bis-1 -phosphanorbornadiene, bis-phosphafewocene, or bis-phosphacyman trene respectively.

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