99028-11-2

Basic information

• Product Name: 3-tert-butyl-2-[tert-butyl(trimethylsilyl)amino]-4-phenyl-1,3,2-oxazaboretidine
• CAS NO: 99028-11-2
• Molecular Weight: 332.369
• Mol File: 99028-11-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-tert-butyl-2-[tert-butyl(trimethylsilyl)amino]-4-phenyl-1,3,2-oxazaboretidine(CAS DataBase Reference)
• NIST Chemistry Reference: 3-tert-butyl-2-[tert-butyl(trimethylsilyl)amino]-4-phenyl-1,3,2-oxazaboretidine(99028-11-2)
• EPA Substance Registry System: 3-tert-butyl-2-[tert-butyl(trimethylsilyl)amino]-4-phenyl-1,3,2-oxazaboretidine(99028-11-2)

Safety Data

• Hazardous Substances Data: 99028-11-2(Hazardous Substances Data)

Upstream product

• 99087-34-0 bis(tert-butyl(trimethylsilyl)amino)fluoroborane 
• 93109-75-2 (tert-butylamino){tert-butyl(trimethylsilyl)amino}borane 
• 100-52-7 benzaldehyde 

Relevant articles and documents

(tert-Butylimino)borane, an Aminoiminoborane, and its Reactions

The title compound tBu-(Me3Si)N-B=N-tBu (1b) was prepared by gas-phase elimination of FSiMe3 from the corresponding diaminoborane as a distillable liquid, storable at -30 deg C, dimerizing at room temperature.Additions to the more unsaturated BN-bond are typical for 1b.Protic reagents are added to give the aminoboranes 3a-c.The aminoboranes 3d-h are formed by ethylo-, azido-, or chloroboration or by azidosilation of 1b, respectively.The chloroboration can be followed by the novel formation of the diazadiboretidines 2e-g.Iminoboranes give a ring closure with 1b, the diazaboretidines 2b, h being formed.The addition of the CO-bond of aldehydes to 1b yields the oxaboretidines 4a-c.The -cycloaddition products 5a, b are isolated by the reaction of 1b with azide- or nitrone-type 1,3-dipolar systems.The borane 1b behaves as a dienophile towards cyclopentadiene with the bicyclic molecule 6 as the product.By X-ray analysis, the central ring-unit of 2f turns out to be a BNBN-rhombus with the acute angles at the N-atoms.