Gold- and Platinum-Catalyzed Formal Markownikoff’s Double Hydroamination of Alkynes: A Rapid Access to Tetrahydroquinazolinones and Angularly-Fused Analogues Thereof
摘要:
A highly efficient gold(I)- and platinum(II)-catalyzed process for formal Markownikoffs double hydroamination of alkynes tethered with hydroxyl group has been developed. The method was shown to be applicable to a broad range of 2-aminobenzamides and alkynols leading to the formation of multiply substituted tetrahydro-quinazolinones. Interestingly, when Pt(IV)Cl-4 catalyst was employed, cyclic angularly fused compound was obtained.
Gold- and Platinum-Catalyzed Formal Markownikoff’s Double Hydroamination of Alkynes: A Rapid Access to Tetrahydroquinazolinones and Angularly-Fused Analogues Thereof
摘要:
A highly efficient gold(I)- and platinum(II)-catalyzed process for formal Markownikoffs double hydroamination of alkynes tethered with hydroxyl group has been developed. The method was shown to be applicable to a broad range of 2-aminobenzamides and alkynols leading to the formation of multiply substituted tetrahydro-quinazolinones. Interestingly, when Pt(IV)Cl-4 catalyst was employed, cyclic angularly fused compound was obtained.
Gold- and Platinum-Catalyzed Formal Markownikoff’s Double Hydroamination of Alkynes: A Rapid Access to Tetrahydroquinazolinones and Angularly-Fused Analogues Thereof
作者:Nitin T. Patil、Rahul D. Kavthe、Vivek S. Raut、Valmik S. Shinde、Balasubramanian Sridhar
DOI:10.1021/jo902293f
日期:2010.2.19
A highly efficient gold(I)- and platinum(II)-catalyzed process for formal Markownikoffs double hydroamination of alkynes tethered with hydroxyl group has been developed. The method was shown to be applicable to a broad range of 2-aminobenzamides and alkynols leading to the formation of multiply substituted tetrahydro-quinazolinones. Interestingly, when Pt(IV)Cl-4 catalyst was employed, cyclic angularly fused compound was obtained.