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New Azoniaboratacyclopropanes from (F3C)2BNMe2 and Diazomethane Derivatives – Structure of cyclo-(F3C)2B–CPh2–NMe2 and HOB(CF3)2–CHC6F5–NHMe2

✍ Scribed by David J. Brauer; Hans Bürger; Silke Buchheim-Spiegel; Gottfried Pawelke

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
172 KB
Volume
1999
Category
Article
ISSN
1434-1948

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✦ Synopsis

Dimethyl-2,2-bis(trifluoromethyl)azoniaboratacyclo-HC(N 2 )C(=O)OtBu react with 1 to form three-membered rings, which hydrolyze rapidly to form Me 2 NH-CR 1 R 2 -propanes, cyclo-(F 3 C)

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Trimethylamine-bis(trifluoromethyl) boranes R(CF 3 ) 2 B ´NMe 3 (R = cis/trans-CF 3 CF=CF (1/2), HCºC (3), H 2 C=CH (4), C 2 H 5 (5), C 6 H 5 CH 2 (6), C 6 F 5 (7), C 6 H 5 (8)) react with NEt 3 ´3 HF depending on the nature of R at 155±200 °C under replacement of the trimethylamine ligand to form