Pd/C-catalyzed synthesis of oxamates by oxidative cross double carbonylation of alcohols and tertiary amines through C–N bond cleavage
作者:Yuvraj A. Kolekar、Bhalchandra M. Bhanage
DOI:10.1039/c9nj04156g
日期:——
carbonylation of alcohols and unactivated tertiary amines has been demonstrated. The in situ oxidative C–N bond cleavage of tertiary amines was achieved using molecular oxygen as an environmentally benign oxidant providing a user-friendly approach to the synthesis of oxamates. The developed protocol showed excellent activity towards the cyclic as well as aliphatic tertiary amines and long-chainalcohols. This
Palladium-catalysed cross double carbonylation of amines and alcohols: synthesis of oxamates
作者:Shun-Ichi Murahashi、Yo Mitsue、Kazuo Ike
DOI:10.1039/c39870000125
日期:——
Crossdoublecarbonylation of amines and alcohols in the presence of PdCl2(MeCN)2/Cul catalyst under CO and O2 at room temperature gives oxamates efficiently.
ALPER, HOWARD;VASAPOLLO, GIUSEPPE;HARTSTOCK, FREDERICK W.;MLEKUZ, MICHAEL+, ORGANOMETALLICS, 6,(1987) N 11, 2391-2393
作者:ALPER, HOWARD、VASAPOLLO, GIUSEPPE、HARTSTOCK, FREDERICK W.、MLEKUZ, MICHAEL+
DOI:——
日期:——
Palladium-Catalyzed Double and Single Carbonylations of<i>β</i>-Amino Alcohols. Selective Synthesis of Morpholine-2,3-diones and Oxazolidin-2-ones and Applications for Synthesis of<i>α</i>-Oxo Carboxylic Acids
Catalytic crossdoublecarbonylation of secondary amines and alcohols proceeds in the presence of [PdCl2(MeCN)2] and CuI under carbon monoxide (80 atm) and oxygen (5 atm). Catalytic intramolecular doublecarbonylation of β-amino alcohols gives morpholine-2,3-diones, which are excellent protecting compounds of amino alcohols and important precursors for biologically active nitrogen compounds. In contrast
仲胺和醇的催化交叉双羰基化在一氧化碳 (80 atm) 和氧气 (5 atm) 下在 [PdCl2(MeCN)2] 和 CuI 的存在下进行。β-氨基醇的催化分子内双羰基化得到吗啉-2,3-二酮,它是氨基醇的极好保护化合物和生物活性氮化合物的重要前体。相比之下,在一氧化碳和氧气 (1.0 atm) 的混合物 (1:1) 下,β-氨基醇的催化单羰基化进行选择性地得到恶唑烷-2-酮。该反应可以通过假设一种机制来解释,该机制包括(羟乙基)氨基羰基配体的羟基对氨基甲酰基钯 (II) 配合物的 CO 配体的分子内亲核攻击,然后还原消除得到吗啉-2,3-二酮。相反,羟基对氨基甲酰基的直接亲核攻击提供了恶唑烷-2-酮。作为双音和单音的常用中间体...