The palladium-catalyzed michael addition reaction of the ketone enolates generated by the decarboxylation of allyl β-keto carboxylates under neutral conditions

1989 ◽  
Vol 30 (36) ◽  
pp. 4829-4832 ◽  
Author(s):  
Jnuzo Nokami ◽  
Hisayuki Watanabe ◽  
Tadakatsu Mandai ◽  
Mikio Kawada ◽  
Jiro Tsuji
2015 ◽  
Vol 53 (3) ◽  
pp. 919-923 ◽  
Author(s):  
Qihua Zhu ◽  
Feng Nie ◽  
Jingjie Feng ◽  
Yuyan Li ◽  
Xuyan Wang ◽  
...  

ChemInform ◽  
2016 ◽  
Vol 47 (35) ◽  
Author(s):  
Qihua Zhu ◽  
Feng Nie ◽  
Jingjie Feng ◽  
Yuyan Li ◽  
Xuyan Wang ◽  
...  

2019 ◽  
Author(s):  
Nobutaka Fujieda ◽  
Miho Yuasa ◽  
Yosuke Nishikawa ◽  
Genji Kurisu ◽  
Shinobu Itoh ◽  
...  

Cupin superfamily proteins (TM1459) work as a macromolecular ligand framework with a double-stranded beta-barrel structure ligating to a Cu ion through histidine side chains. Variegating the first coordination sphere of TM1459 revealed that H52A and H54A/H58A mutants effectively catalyzed the diastereo- and enantio-selective Michael addition reaction of nitroalkanes to an α,β-unsaturated ketone. Moreover, in silico substrate docking signified C106N and F104W single-point mutations, which inverted the diastereoselectivity of H52A and further improved the stereoselectivity of H54A/H58A, respectively.


Synthesis ◽  
2021 ◽  
Author(s):  
Azim Ziyaei Halimehjani ◽  
Petr Beier ◽  
Maryam Khalili Foumeshi ◽  
Ali Alaei ◽  
Blanka Klepetářová

AbstractThiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino acids), carbon disulfide, and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. By using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of the adducts was demonstrated by hydrolysis, amidation, and oxidation reactions.


2018 ◽  
Vol 16 (48) ◽  
pp. 9461-9471 ◽  
Author(s):  
Jiayong Zhang ◽  
Zhiwei Miao

A sequential [3 + 2] cycloaddition and Michael addition reaction of ynones with benzylidenepyrazolones afforded cyclopentanone-fused spiro-pyrazolones catalyzed by DPPB via dual α′,α′-C(sp3)–H bifunctionalization.


ChemInform ◽  
2011 ◽  
Vol 42 (21) ◽  
pp. no-no
Author(s):  
David Roca-Lopez ◽  
Pedro Merino ◽  
Francisco J. Sayago ◽  
Carlos Cativiela ◽  
Raquel P. Herrera

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