Efficient synthesis and NMR data of N- or B-substituted borazines

✍ Scribed by Eric Framery; Michel Vaultier

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 191 KB
• Volume: 11
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/(sici)1098-1071(2000)11:3<218::aid-hc10>3.0.co;2-k

✦ Synopsis

The thermolysis of borane-primary amine complexes RNH 2 .BH 3 was reexamined. Excellent yields of N-substituted borazines were obtained at 200ЊC, when R is an alkyl group, and at 120ЊC for R ‫ס‬ Ph. B-alkyl, vinyl, and alkynyl borazines were easily prepared in good to excellent yields by ammonolysis of bis(diisopropylamino)organoboranes at temperatures above 95ЊC. The 1 H, 13 C, and 15 N or 14 N NMR data for all borazines prepared are reported for the first time.