Synthesis of Cyclohexane-Fused Isocoumarins via Cationic Palladium(II)-Catalyzed Cascade Cyclization Reaction of Alkyne-Tethered Carbonyl Compounds Initiated by Intramolecular Oxypalladation of Ester-Substituted Aryl Alkynes

2016 ◽  
Vol 81 (8) ◽  
pp. 3423-3429 ◽  
Author(s):  
Jianbo Zhang ◽  
Xiuling Han ◽  
Xiyan Lu
Keyword(s):  
Carbonyl Compounds ◽  
Cyclization Reaction ◽  
Cascade Cyclization ◽  
Cationic Palladium ◽  
Aryl Alkynes

ChemInform Abstract: Superbase-Promoted Selective Cascade Cyclization Reaction of 1,5-Diketones with Acetylenes to Methylene-6,8-dioxabicyclo[3.2.1]octanes.

ChemInform ◽  
2013 ◽  
Vol 44 (37) ◽  
pp. no-no
Author(s):  
Elena Yu. Schmidt ◽  
Ivan A. Bidusenko ◽  
Nadezhda I. Protsuk ◽  
Igor A. Ushakov ◽  
Boris A. Trofimov
Keyword(s):  
Cyclization Reaction ◽  
Cascade Cyclization

Diverse privileged N-polycyclic skeletons accessed from a metal-free cascade cyclization reaction

2021 ◽  
Vol 19 (37) ◽  
pp. 8086-8095
Author(s):  
Wenzhong Li ◽  
Yu Wang ◽  
Huijing Qi ◽  
Ran Shi ◽  
Jiazhu Li ◽  
...  
Keyword(s):  
Membered Ring ◽  
Cyclization Reaction ◽  
One Pot ◽  
Metal Free ◽  
Cascade Cyclization ◽  
One Pot Synthesis ◽  
Ring Compounds

Metal-free cascade cyclization of 2-acylbenzoic acids with amines provided a one-pot synthesis of diverse isoindoloisoquinoline and benzoindolizinoindole derivatives, which were subsequently used to produce nitrogen-containing nine-membered ring compounds.

Concise asymmetric total synthesis of lycopodine and flabelliformine via cascade cyclization reaction

2019 ◽  
Vol 60 (2) ◽  
pp. 187-190 ◽  
Author(s):  
Kentaro Wada ◽  
Noriyuki Kogure ◽  
Mariko Kitajima ◽  
Hiromitsu Takayama
Keyword(s):  
Total Synthesis ◽  
Cyclization Reaction ◽  
Asymmetric Total Synthesis ◽  
Cascade Cyclization

Synthesis of seco-psymberin/irciniastatin A: the discovery of a novel PhI(OAc)2 mediated cascade cyclization reaction

2008 ◽  
Vol 49 (22) ◽  
pp. 3592-3595 ◽  
Author(s):  
Xianhai Huang ◽  
Ning Shao ◽  
Anandan Palani ◽  
Robert Aslanian ◽  
Alexei Buevich ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
Cascade Cyclization

Formation of Acetals and Ketals from Carbonyl Compounds: A New and Highly Efficient Method Inspired by Cationic Palladium

Synlett ◽  
2019 ◽  
Vol 30 (15) ◽  
pp. 1810-1814 ◽  
Author(s):  
Enoch A. Mensah ◽  
Shawn D. Green ◽  
Jesse West ◽  
Tyler Kindoll ◽  
Brenda Lazaro-Martinez
Keyword(s):  
Efficient Method ◽  
Palladium Catalyst ◽  
Carbonyl Compounds ◽  
Catalyst Loading ◽  
Carbonyl Groups ◽  
Simple Method ◽  
Ambient Temperatures ◽  
Highly Efficient ◽  
Low Catalyst Loading ◽  
Cationic Palladium

The development of a new, highly efficient, and simple method for masking carbonyl groups as acetals and ketals is described. This methodology relies on the nature of the palladium catalyst to direct the acetalization/ketalization reaction. This new protocol is mild and proceed with a very low catalyst loading at ambient temperatures. The method has been extended to a wide variety of different carbonyl compounds with various steric encumbrances to form the corresponding acetals and ketals in excellent yields.

An Enolate‐Structure‐Enabled Anionic Cascade Cyclization Reaction: Easy Access to Complex Scaffolds with Contiguous Six‐, Five‐, and Four‐Membered Rings

2020 ◽  
Vol 132 (45) ◽  
pp. 20295-20303
Author(s):  
Tomas Javorskis ◽  
Ieva Karpavičienė ◽  
Arminas Jurys ◽  
Gustautas Snarskis ◽  
Rita Bukšnaitienė ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
Easy Access ◽  
Cascade Cyclization
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