Synthesis of 1-acylamino-1-(trimethylsiloxy)alkanes by trimethylsilyl trifluoromethanesulfonate-catalysed addition of bis(trimethylsilyl)amides to aldehydes
Synthesis and reactions of N,N-bis[1-(trimethylsiloxy)alkyl]-formamides: preparation of (±)-argemonine and (±)-norargemonine
作者:A. Peter Johnson、Richard W. A. Luke、Gurmaj Singh、Andrew N. Boa
DOI:10.1039/p19960000907
日期:——
Symmetrical and unsymmetrical N,N-bis[1-(trimethylsiloxy)alkyl]formamides are prepared and their reactions investigated, including an application to the synthesis of the pavine alkaloids (±)-argemonine and (±)-norargemonine
JOHNSON A. P.; LUKE R. W. A.; STEELE R. W., J. CHEM. SOC. CHEM. COMMUN.,(1986) N 22, 1658-1659
作者:JOHNSON A. P.、 LUKE R. W. A.、 STEELE R. W.
DOI:——
日期:——
Reactions of 1-acylamino-1-(trimethylsiloxy)alkanes: versatile precursors to acylimines
作者:A. Peter Johnson、Richard W. A. Luke、Andrew N. Boa
DOI:10.1039/p19960000895
日期:——
1-Acylamino-1-(trimethylsiloxy)alkanes react with carbon and heteroatom nucleophiles to give the corresponding 1-substituted-1-acylaminoalkanes. The 1-acylamino-1-(trimethylsiloxy)alkanes can also give rise to enamides, and by this route the mild antibiotic tuberin, and the isomeric (Z)-tuberin have been prepared. A further example of their reactions is illustrated with the acid-catalysed intramolecular cyclisation onto a carbon–carbon double bond. These transformations show that 1-acylamino-1-(trimethylsiloxy)alkanes are versatile precursors to synthetically useful acylimines.
Synthesis of 1-acylamino-1-(trimethylsiloxy)alkanes by trimethylsilyl trifluoromethanesulfonate-catalysed addition of bis(trimethylsilyl)amides to aldehydes
作者:A. Peter Johnson、Richard W. A. Luke、Robert W. Steele、Andrew N. Boa
DOI:10.1039/p19960000883
日期:——
Bis(trimethylsilyl)formamide reacts with aldehydes in refluxing chloroform, or at room temperature with catalysis by trimethylsilyl trifluoromethanesulfonate, to give 1-acylamino-1-(trimethylsiloxy)alkanes; similar results are obtained with other bis(trimethylsilyl)amides, but surprisingly not with bis(trimethylsilyl)acetamide, and addition of bis(trimethylsilyl)formamide to ketones and acetals can also be accomplished using TMS triflate as catalyst.