Hydrosilane Reduction of Nitriles to Primary Amines by Cobalt–Isocyanide Catalysts
作者:Atsushi Sanagawa、Hideo Nagashima
DOI:10.1021/acs.orglett.8b03736
日期:2019.1.4
silylated primaryamines was achieved by combination of 1,1,3,3-tetramethyldisiloxane (TMDS) as the hydrosilane and a catalytic amount of Co(OPiv)2 (Piv = COtBu) associated with isocyanide ligands. The resulting silylated amines were subjected to acid hydrolysis or treatment with acid chlorides to give the corresponding primaryamines or imides in good yields. One-pot synthesis of primary amides to
通过将1,1,3,3-四甲基二硅氧烷(TMDS)作为氢化硅烷和催化量的与异氰配体缔合的Co(OPiv)2(Piv = CO t Bu)的组合,可以将腈还原为甲硅烷基化的伯胺。将所得的甲硅烷基化的胺进行酸水解或用酰氯处理,以高收率得到相应的伯胺或酰亚胺。铁-钴双催化剂体系也可以通过氢化硅烷将伯酰胺一锅合成伯胺。
A new method for peptide synthesis in the N→C direction: amide assembly through silver-promoted reaction of thioamides
作者:Aysa Pourvali、James R. Cochrane、Craig A. Hutton
DOI:10.1039/c4cc07601j
日期:——
The Ag(I)-promoted coupling of amino acids and peptides with amino ester thioamides generates peptide imides without epimerisation. The peptide imides undergo regioselective hydrolysis under mild conditions to generate native peptides. This method was employed to prepare the pentapeptide thymopentin in the N-->C direction, in high yield and purity.
Rao, C. Someswara; Rambabu, M.; Srinivasan, P. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 407 - 411
作者:Rao, C. Someswara、Rambabu, M.、Srinivasan, P. S.
DOI:——
日期:——
Goss; Ingold; Wilson, Journal of the Chemical Society, 1926, p. 2458