Acetone Cyanohydrin: A Convenient Alternative of Toxic Sodium Cyanide/Acetic Acid for Oxidative Cyanation of Tertiary Amines
作者:Sanny Verma、Suman L. Jain、Bir Sain
DOI:10.1007/s10562-011-0582-6
日期:2011.6
Acetone cyanohydrin was found to be a facile, convenient and comparatively safer alternative to toxic sodiumcyanide/acetic acid system for generating in situ HCN for the oxidativecyanation of tertiaryamines to α-aminonitriles in high yields with hydrogenperoxideusing RuCl3 as catalyst. In addition organic nature of acetone cyanohydrin makes it more suitable for an organic transformation since
Nucleophilic Attack of α-Aminoalkyl Radicals on CarbonNitrogen Triple Bonds to Construct α-Amino Nitriles: An Experimental and Computational Study
作者:Chao Zhang、Chunmei Liu、Ying Shao、Xiaoguang Bao、Xiaobing Wan
DOI:10.1002/chem.201303296
日期:2013.12.23
A new reactivity pattern of α‐aminoalkyl radicals, involving nucleophilicattack on CN triplebonds under thermal conditions, has been developed to construct α‐amino nitriles. In contrast to previous CH functionalization of tertiary amines involving α‐aminoalkyl radicals, this methodology does not require the use of photocatalytic conditions or a transition‐metal catalyst. Inexpensive and nontoxic
An efficient aerobic oxidative cyanation of tertiary amines with sodium cyanide using vanadium based systems as catalysts
作者:Sweety Singhal、Suman L. Jain、Bir Sain
DOI:10.1039/b820402k
日期:——
The first report on the use of vanadium-based catalysts for oxidative cyanation of tertiary amines with molecular oxygen in the presence of sodiumcyanide and acetic acid to afford the corresponding alpha-aminonitriles in good to excellent yields is described.
Heterogeneously Catalyzed Oxidative Cyanation of Tertiary Amines with Sodium Cyanide/Hydrogen Peroxide using Polymer-Supported Iron(II) Phthalocyanines as Catalyst
作者:Sweety Singhal、Suman L. Jain、Bir Sain
DOI:10.1002/adsc.201000007
日期:——
The first report on heterogeneously catalyzed oxidative cyanation of various tertiaryamines to the corresponding α‐amino nitriles with high yields and selectivity by using hydrogen peroxide oxidant in presence of sodium cyanide and Fe(II) phthalocyanine supported on a polymer as catalyst is described. The present method has the added benefits of facile recovery of the catalyst from the reaction mixture
Interpenetrating dye-functionalized indium–organic frameworks for photooxidative cyanation and oxidative cyclization
作者:Leixin Hou、Xu Jing、Huilin Huang、Chunying Duan
DOI:10.1039/d2ta07272f
日期:——
that the discriminative interpenetrating behavior of In-TPBD-20 and In-TPBD-50 regulates the generation and proportion of O2˙− and 1O2 species via spin-flip electron transfer. Due to the moderate light harvesting ability, prominent O2˙− generation rate and higher framework stability, In-TPBD-20 can serve as an efficient robust heterogeneous photocatalyst for various photocatalytic aerobic oxidation reactions
金属-有机框架中的结构互穿影响了孔隙率的可设计性和光子吸收的可调性;但是通过合理地修改 MOF 的功能网络互通面临着显着挑战。在此,通过仔细调节光活性推拉发色团堆叠模式,我们报告了两种染料功能化的铟有机框架,2 倍互穿 In-TPBD-20 和 4 倍互穿 In-TPBD-50。值得注意的是,In-MOFs中框架的互穿促进了光捕获能力和空穴-电子分离,而氮位点的引入促进了分子氧的吸附和活化行为。理论计算和活性氧(ROS)测定实验进一步表明,In-TPBD-20和In-TPBD-50的判别互穿行为调节了O 2 ˙ -和1 O 2的产生和比例。物种通过自旋翻转电子转移。由于适中的光捕获能力、显着的 O 2 ˙ -生成率和更高的骨架稳定性,In-TPBD-20 可以作为一种高效、稳健的多相光催化剂,用于各种光催化有氧氧化反应,包括芳基叔胺的氧化氰化和氧化环化在芳基叔胺和马来酰亚胺或缺电子烯烃之间。这项工作为通过调节互穿框架来调节O