5-Butyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(2,4,6-trimethylphenyl)isoxazole.
A novel [3+2]-cycloaddition reaction of alkynylboronates and nitrile oxides gave the title compound, C(22)H(32)BNO(3), as a single regioisomer. The X-ray crystal structure analysis of this compound shows two independent molecules in the asymmetric unit, each with approximately coplanar isoxazole and boronate rings.
Harrity
Joseph P A
JP
Department of Chemistry, University of Sheffield, Sheffield S3 7HF, England.
Adams
Harry
H
Davies
Mark W
MW
Wybrow
Robert A J
RA
Johnson
Christopher N
CN
D001896:Boron Compounds / Q000737:chemistry*; D006860:Hydrogen Bonding; D007555:Isoxazoles / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation
C455526:5-butyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(2,4,6-trimethylphenyl)isoxazole; D001896:Boron Compounds; D007555:Isoxazoles