scholarly journals Electrochemical oxidation induced selective tyrosine bioconjugation for the modification of biomolecules

2019 ◽  
Vol 10 (34) ◽  
pp. 7982-7987 ◽  
Author(s):  
Chunlan Song ◽  
Kun Liu ◽  
Zhongjie Wang ◽  
Bo Ding ◽  
Shengchun Wang ◽  
...  

This electrochemical bioconjugation reaction provides an efficient modification of biomolecules with high chemo- and site-selectivity under mild conditions.

Synlett ◽  
2019 ◽  
Vol 30 (18) ◽  
pp. 2077-2080
Author(s):  
Wenxia Xie ◽  
Bowen Gong ◽  
Shulin Ning ◽  
Nian Liu ◽  
Zhuoqi Zhang ◽  
...  

A diethyl phosphite mediated electrochemical oxidation strategy for the synthesis of 3,4-dihydroisoquinolin-1(2H)-ones from tetrahydroisoquinolines under mild conditions has been developed. This protocol provides an environmentally friendly and simple way for the construction of C=O bonds in an undivided cell unit.


2020 ◽  
Author(s):  
Tao Yang ◽  
Yi Jiang ◽  
Yixin Luo ◽  
Yu Lan ◽  
Ming Joo Koh

<div>Multicomponent catalytic processes that can generate multiple C(sp<sup>3</sup>)-C(sp<sup>3</sup>) bonds in a single step under mild conditions,particularly if the catalysts and substrates are inexpensive, are highly sought-after in chemistry research for complex molecule synthesis. Here, we disclose an efficient Ni-catalysed reductive protocol that chemoselectively merges alkenyl amides with two different</div><div>aliphatic electrophiles. Starting materials are readily accessible from stable and abundant feedstock and products are furnished in up to >98:2 regioisomeric ratios. The present strategy eliminates the use of sensitive organometallic reagents, tolerates a wide array of complex functionalities and enables regiodivergent addition of two primary alkyl groups bearing similar electronic and steric attributes across aliphatic C=C bonds with exquisite control of site selectivity. Utility is underscored by the concise synthesis of bioactive compounds and post-reaction functionalizations leading to structurally diverse scaffolds. DFT studies revealed that the regiochemical outcome originates from the orthogonal reactivity and chemoselectivity profiles of in situ-generated organonickel species.</div>


2016 ◽  
Vol 52 (55) ◽  
pp. 8600-8603 ◽  
Author(s):  
Yanan Li ◽  
Huihui Gao ◽  
Zhenlei Zhang ◽  
Peng Qian ◽  
Meixiang Bi ◽  
...  

A novel approach to realize the synthesis of α-enaminones via electrochemical oxidation was developed under mild conditions.


2014 ◽  
Vol 50 (39) ◽  
pp. 5034-5036 ◽  
Author(s):  
Huihui Gao ◽  
Zhenggen Zha ◽  
Zhenlei Zhang ◽  
Huanyue Ma ◽  
Zhiyong Wang

A facile difunctionalization of arylketones with malonate esters via electrochemical oxidation was achieved under mild conditions.


2020 ◽  
Author(s):  
Tao Yang ◽  
Yi Jiang ◽  
Yixin Luo ◽  
Yu Lan ◽  
Ming Joo Koh

<div>Multicomponent catalytic processes that can generate multiple C(sp<sup>3</sup>)-C(sp<sup>3</sup>) bonds in a single step under mild conditions,particularly if the catalysts and substrates are inexpensive, are highly sought-after in chemistry research for complex molecule synthesis. Here, we disclose an efficient Ni-catalysed reductive protocol that chemoselectively merges alkenyl amides with two different</div><div>aliphatic electrophiles. Starting materials are readily accessible from stable and abundant feedstock and products are furnished in up to >98:2 regioisomeric ratios. The present strategy eliminates the use of sensitive organometallic reagents, tolerates a wide array of complex functionalities and enables regiodivergent addition of two primary alkyl groups bearing similar electronic and steric attributes across aliphatic C=C bonds with exquisite control of site selectivity. Utility is underscored by the concise synthesis of bioactive compounds and post-reaction functionalizations leading to structurally diverse scaffolds. DFT studies revealed that the regiochemical outcome originates from the orthogonal reactivity and chemoselectivity profiles of in situ-generated organonickel species.</div>


2016 ◽  
Vol 4 (9) ◽  
pp. 3278-3286 ◽  
Author(s):  
C. Engelbrekt ◽  
N. Šešelj ◽  
R. Poreddy ◽  
A. Riisager ◽  
J. Ulstrup ◽  
...  

Atomically thin platinum shells on gold nanoparticles (NPs) are synthesized in one pot under mild conditions. The core-shell NPs exhibit excellent catalysis for energy related processes such as electrochemical oxidation of biofuels, aromatic ring hydrogenation, and γ-valerolactone production.


2018 ◽  
Vol 54 (43) ◽  
pp. 5414-5417 ◽  
Author(s):  
Mathieu Berthelot ◽  
Guillaume Hoffmann ◽  
Asmae Bousfiha ◽  
Julie Echaubard ◽  
Julien Roger ◽  
...  

New cationic C–N fused porphyrins are synthesized under very mild conditions via chemical and electrochemical oxidation of their pyridinyl-based-porphyrin precursors.


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