A simple, mild, catalyst-free, and efficacious KOtBu-mediated reductive cyanation reaction of tertiary amides under hydrosilylation conditions has been described. A series of α-aminonitriles is obtained in moderate to high yield with good functional group tolerance. The reaction works well with a readily available amide substrate, a cheap and versatile base KOtBu, and a commercially available hydrosilane
已经描述了一种简单、温和、无催化剂和有效的 KO t Bu 介导的叔酰胺在氢化硅烷化条件下的还原氰化反应。以中等至高产率获得了一系列具有良好官能团耐受性的α-氨基腈。该反应适用于现成的酰胺底物、廉价且用途广泛的碱 KO t Bu 和市售的氢硅烷 (EtO) 3 SiH,便于后处理和纯化。
Mechanochemical Pd-Catalyzed Amino- and Oxycarbonylations using FeBr<sub>2</sub>(CO)<sub>4</sub> as a CO Source
Herein, we describe the development of mechanochemical amino- and oxycarbonylation employing FeBr2(CO)4 as a solid CO source. This Pd/XantPhos-catalyzed reaction affords a range of carboxamides and esters from aryl iodides and various amines or phenols. Both primary and secondary amines, including amino acids, can be employed as N-nucleophiles.
在此,我们描述了使用 FeBr 2 (CO) 4作为固体 CO 源的机械化学氨基和氧羰基化的发展。这种 Pd/XantPhos 催化的反应由芳基碘化物和各种胺或酚生成一系列甲酰胺和酯。伯胺和仲胺,包括氨基酸,都可以用作N-亲核试剂。
Selective Reduction of Amides to Amines by Boronic Acid Catalyzed Hydrosilylation
作者:Yuehui Li、Jesús A. Molina de La Torre、Kathleen Grabow、Ursula Bentrup、Kathrin Junge、Shaolin Zhou、Angelika Brückner、Matthias Beller
DOI:10.1002/anie.201304495
日期:2013.10.25
Not a ‘B'ore! Benzothiophene‐based boronicacidscatalyze the reduction of tertiary, secondary, and primary amides in the presence of a hydrosilane. The reaction demonstrates good functional‐group tolerance.
Catalytic reduction of amides to amines by electrophilic phosphonium cations via FLP hydrosilylation
作者:Alessandra Augurusa、Meera Mehta、Manuel Perez、Jiangtao Zhu、Douglas W. Stephan
DOI:10.1039/c6cc06914b
日期:——
A catalytic methodology for the conversion of amides to amines is reported. Of the 25 examples described, 14 examples involve the reduction of N-trifluoroacetamides to the corresponding trifluoroethylamines. These reductions...