Producción Científica Profesorado

Benzazole-N(SINGLE BOND)BH3 adducts. Reductive transposition of 2-benzimidazole, 2-benzothiazole, and 2-benzoxazole N(SINGLE BOND)BH3 adducts to 1,3,2-benzimidazaborole, 1,3,2-benzoxaborole, and 1,3,2-benzothiazaborole



Andrade López, Noemí

1996

Benzazole-N-BH3 adducts. Reductive transposition of 2-benzimidazole 2-benzothiazole and 2-benzoxazole N-BH3 adducts to 1,3,2-benzimidaza-boroles, 1,3,2-benzoxaborole and 1,3,2-benzothiazaborole. I.I. Padilla-Martínez, N. Andrade-López, M. Gama-Goicochea, E. Aguilar-Cruz, A. Cruz, R. Contreras, Heteroatom Chem, 7, 1996, 323-335. ISSN (on line) 1098-1071. DOI: 10.1002/(SICI)1098-1071(199610)7:5<323::AID-HC7>3.0.CO;2-C


Abstract


1,3,2-Benzimidazaborole, 1,3,2-benzoxaborole, and 1,3,2-benzothiazaborole were synthesized from the corresponding 2-benzazole N(SINGLE BOND)BH3 and 2-benzazole S(SINGLE BOND)BH3 adducts through a reductive transposition from the isolobal fragment X(SINGLE BOND)C(sp2) (DOUBLE BOND) N(sp2) (SINGLE BOND) B(sp3) (X (DOUBLE BOND) N, O, S) to the fragment X(SINGLE BOND)B(sp2) (DOUBLE BOND) N(sp2) (SINGLE BOND) C(sp3). N(SINGLE BOND)BH3 substitution shifts to lower frequencies 4-H, C-3a, and C-7a resonances. The X-ray diffraction analysis of 2-(o-methoxyphenyl)benzothiazole N(SINGLE BOND)BH3 adduct is reported. Two new tetracyclic boron-bridged compounds were observed as by-products (6,9-(ethyl)-diaza-2-oxa-1-bora[3,4,7,8]-dibenzobycyclo[4.3.0]-nona-3,7-diene, 6d, and 8-aza-9-oxa-2-thia-1-bora-[3,4,7,8]dibenzobycyclo[3.4.0]nona-3,7-diene, 15d, when 2-(o-methoxyphenyl)-1-ethylbenzimidazole-BH36b and 2-(o-methoxyphenyl)-benzothiazole-BH315b adducts were heated



Producto de Investigación




Artículos relacionados

Hexacoordinated spirocyclic germanium(IV) complex: Synthesis and structural characterization

Organometallic tin complexes derived from 2-guanidinobenzimidazole

Synthesis and crystal structure of the N-8-(diphenyl-hydroxy-2-aminomethylpyridine)borane

Synthesis and structural characterization of bis-chelate Pd(II) complexes derived from substituted d...

Five-membered ring chelate complexes of Ni(II), Pd(II) and Pt(II) derived of di-(2-pyridyl)-N-ethyli...

Synthesis, characterization and crystal structures of dipyridyl-N-methylimine and cloro-bis (N,N?-2,...

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing dipy...

Determination of Glucose by Flow Injection Analysis with Amperometric Detection at Fe(III)-(tris(3,5...

Pentacoordination at antimony in dibenzostibocines via DSb transannular interactions (D = O, S): A s...

Synthesis, characterization, and crystal structures of n-alkyldiorganodithiophosphates RS2P(OC6H4)2