Ni-Catalyzed Enantioselective Intermolecular Hydroamination of Branched 1,3-Dienes Using Primary Aliphatic Amines

2019 ◽  
Vol 141 (37) ◽  
pp. 14814-14822 ◽  
Author(s):  
Gaël Tran ◽  
Wen Shao ◽  
Clément Mazet
2019 ◽  
Author(s):  
Yongzheng Ding ◽  
Shuai Fan ◽  
Xiaoxi Chen ◽  
yuzhen gao ◽  
Gang Li

A Pdᴵᴵ-catalyzed, ligand-enabled gamma-C(sp3)–H arylation of free primary aliphatic amines and amino esters without using an exogenous directing group is reported. This reaction is compatible with unhindered free aliphatic amines, and it is also be applicable to the rapid synthesis of biologically and synthetically valuable unnatural α-amino acids. Large scale synthesis is also feasible using this method.<br>


2021 ◽  
Vol 2021 (7) ◽  
pp. 1136-1145
Author(s):  
Hyeonbin Ha ◽  
Ho Jeong Choi ◽  
Hahyoun Park ◽  
Yunyeong Gwon ◽  
Jiin Lee ◽  
...  

1989 ◽  
Vol 30 (47) ◽  
pp. 6495-6496 ◽  
Author(s):  
Walter W Zajac ◽  
Michael G Darcy ◽  
Amador P Subong ◽  
John H Buzby

Synthesis ◽  
2021 ◽  
Author(s):  
Nilo Zanatta ◽  
Lucimara L Zachow ◽  
Mateus Mittersteiner ◽  
Estefania da Costa Aquino ◽  
Helio G Bonacorso ◽  
...  

In this work, the reactivity of 5-bromo-1,1,1-trifluoro-4-methoxypent-3-en-2-one toward primary aliphatic amines was studied. The reaction was found to be extremely selective to synthesize a series of 1-alkyl-4-aminoalkyl-2-trifluoromethyl-1H-pyrroles (13 examples, at yields up to 90%) and a series of highly functionalized β-enaminones (6 examples, at yields up to 78%), with only the amount of amine and the reaction condition needing to be controlled. The structure of the products was unambiguously determined by single crystal X-ray diffraction and 2D NMR experiments.


2020 ◽  
Vol 31 (5) ◽  
pp. 1327-1331 ◽  
Author(s):  
Pranab K. Pramanick ◽  
Zhibing Zhou ◽  
Zhenlin Hou ◽  
Yufei Ao ◽  
Bo Yao

1984 ◽  
Vol 39 (6) ◽  
pp. 593-595
Author(s):  
Eberhard Heyne ◽  
Gerhard Raabe ◽  
Jörg Fleischhauer

Recently we reported the results of semiempirical calculations (MNDO, MINDO/3) which led us to the conclusion, that the proton-affinity of molecules R-NH2 (R = H, CH3, C2H5, n-C3H7 and n-C4H9) is determined by the ability of the groups R to carry positive charge in the corresponding cations R-NH3+. We did extend our investigations concerning the protonaffinities of primary aliphatic amines including NH3 and performed ab initio calculations with an STO-3G basis. The results qualitatively parallel those obtained by the semiempirical methods mentioned above. In contrast to the semiempirical results we found that there is a satisfactory correlation between the Mulliken-charges of the nitrogen-atoms and of the NH2-groups and the experimental protonaffinities if NH3 is excluded.


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