A computationally designed titanium-mediated amination of allylic alcohols for the synthesis of secondary allylamines

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 84284-84289 ◽  
Author(s):  
Zunming Sun ◽  
Qingxia Wang ◽  
Yi Xu ◽  
Zhihong Wang

A direct amination on allylic alcohols under mild conditions was enlightened by computational investigations and implemented in secondary allylamines synthesis.

ChemInform ◽  
2010 ◽  
Vol 41 (10) ◽  
Author(s):  
Takashi Ohshima ◽  
Yoshiki Miyamoto ◽  
Junji Ipposhi ◽  
Yasuhito Nakahara ◽  
Masaru Utsunomiya ◽  
...  

2009 ◽  
Vol 131 (40) ◽  
pp. 14317-14328 ◽  
Author(s):  
Takashi Ohshima ◽  
Yoshiki Miyamoto ◽  
Junji Ipposhi ◽  
Yasuhito Nakahara ◽  
Masaru Utsunomiya ◽  
...  

Author(s):  
Shuangshuang Li ◽  
Ju Qiu ◽  
Bowen Li ◽  
Zuolian Sun ◽  
Peizhong Xie ◽  
...  

A practical palladium/calcium catalytic system was developed for dehydrative allylation concerning unactivated allylic alcohols. EtOH solvent with H2O additive was identified as powerful media to accelerate proton transfer. That catalytic...


1998 ◽  
Vol 76 (10) ◽  
pp. 1467-1473 ◽  
Author(s):  
Veranja Karunaratne ◽  
David Dolphin

A variety of substituted 2-methylpyrroles (3-8) were oxidized using the metalloporphyrin catalysts iron(III) meso-tetra(2,6-dichloro-3-sulphonatophenyl)-β-octachloroporphyrin chloride 1 and iron(III) meso-tetra(2,6-dichlorophenyl)-β-octachloroporphyrin chloride 2 under very mild conditions. Treatment of the resulting allylic alcohols 3a-8a with α-free pyrroles 9 and 10 resulted in a very efficient synthesis of the corresponding dipyrromethanes 3b-8b and 3c-8c. Furthermore, the above allylic alcohols when treated with furfurylamine produced the novel (2-furylmethyl)-2-pyrrolylmethylamines 3d-8d.Key words: catalytic oxidation, metalloporphyrins, pyrroles, dipyrromethanes, polyhalogenated porphyrins.


2006 ◽  
Vol 25 (20) ◽  
pp. 4846-4849 ◽  
Author(s):  
Pascale Crochet ◽  
Mariano A. Fernández-Zúmel ◽  
José Gimeno ◽  
Marcus Scheele

ChemInform ◽  
2016 ◽  
Vol 47 (43) ◽  
Author(s):  
Zhengyin Du ◽  
Yufei Yan ◽  
Ying Fu ◽  
Kehu Wang

2019 ◽  
Vol 17 (12) ◽  
pp. 3103-3107 ◽  
Author(s):  
Yunlong Guo ◽  
Zengming Shen

We discovered an effective and simple system (Pd/BQ/air/r.t.) for making allylic alcohols through Pd-catalyzed allylic C–H bond functionalization.


ChemInform ◽  
2015 ◽  
Vol 46 (19) ◽  
pp. no-no
Author(s):  
Maorong Wang ◽  
Yinjun Xie ◽  
Jiawen Li ◽  
Hanmin Huang

Synthesis ◽  
2021 ◽  
Author(s):  
Souta Misawa ◽  
Asaki Miyairi ◽  
Yoshihiro Oonishi ◽  
Steven P. Nolan ◽  
Yoshihiro Sato

Polarized alkynes such as ynol ethers and ynamides have attracted much attention due to their inherent unique reactivity. Herein, we report Au(I)-catalyzed hydroalkoxylation/Claisen rearrangement cascade reactions of aryl ynol ethers and ynamides with allylic alcohols. At the first stage (hydroalkoxylation) of this cascade reaction, attack of allylic alcohols to aryl ynol ethers or ynamides occurs at the α-position of the polarized alkynes in an entirely regioselective manner. Claisen rearrangement of the resulting adducts subsequentially takes place to give γ,δ-unsaturated esters or amides, respectively. The [Au(IPr)NTf2] catalyst is most effective for this reaction, and the reaction proceeds under mild conditions (in the case of aryl ynol ether: in THF, 60 °C; in the case of ynamides: in toluene, 80 °C) in an atom-economical way.


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