Crystal Structure of 2,4,5,7,9,10-Hexaoxa-1,3,6,8-tetraphenyltricyclo[6.2.0.03,6]decane: An Authentic Bisdioxetane

✍ Scribed by Prof. Dr. Waldemar Adam; Ernst Schmidt; Dr. Eva-Maria Peters; Dr. Karl Peters; Prof. Dr. Hans Georg von Schnering

• Publisher: John Wiley and Sons
• Year: 1983
• Tongue: English
• Weight: 244 KB
• Volume: 22
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.198305461

✦ Synopsis

formed separately and the Pe stabilized as a bisphosphane complex['0T. The complex with tris(dimethy1amino)phosphane, the 1,1,1,3,3,3-hexakis(dimethylamino)-l?~~,32.~-triphospha-2-enium tetraphenylborate 2, is particularly easy to handle"']. In order to accept Pe from 2, however, the olefin must be particularly electron-rich. Thus, the biimidazolidinylidene 1 reacts with 2 in the way suggested to afford the phosphaallyl tetraphenylborates 4 (X = BPh,; R = Me, Et), displacing two equivalents of tris(dimethy1amino)phosphane.