Literature DB >> 22514791

Synthesis of cycloheptanoid natural products via tandem 5-exo cyclization/Claisen rearrangement process.

Timo V Ovaska1.   

Abstract

This article describes the development of microwave-assisted oxyanionic 5-exo-dig cyclization-Claisen rearrangement sequence as a convenient "one-pot" route to a variety of seven-membered carbocyclic ring systems. This process was used as the key transformation for the construction of several natural products, including frondosins A, B, and C.

Entities:  

Year:  2010        PMID: 22514791      PMCID: PMC3327132     

Source DB:  PubMed          Journal:  ARKIVOC            Impact factor:   1.140


  28 in total

1.  The Total Synthesis of Frondosin B.

Authors: 
Journal:  Angew Chem Int Ed Engl       Date:  2000-02       Impact factor: 15.336

2.  Tandem anionic 5-Exo dig cyclization/Claisen rearrangement as an efficient route to fused polycyclic ring systems.

Authors:  T V Ovaska; J B Roses
Journal:  Org Lett       Date:  2000-07-27       Impact factor: 6.005

Review 3.  Transition-metal-catalyzed addition of heteroatom-hydrogen bonds to alkynes.

Authors:  Francisco Alonso; Irina P Beletskaya; Miguel Yus
Journal:  Chem Rev       Date:  2004-06       Impact factor: 60.622

4.  First approach to the frondosin C ring system via a tandem cyclization/Claisen rearrangement sequence.

Authors:  Isamir Martínez; Philip E Alford; Timo V Ovaska
Journal:  Org Lett       Date:  2005-03-17       Impact factor: 6.005

5.  The cycloaddition strategy for the synthesis of natural products containing carbocyclic seven-membered rings.

Authors:  Merle A Battiste; Phillip M Pelphrey; Dennis L Wright
Journal:  Chemistry       Date:  2006-04-24       Impact factor: 5.236

Review 6.  The role of interleukin-8 and its receptors in gliomagenesis and tumoral angiogenesis.

Authors:  Daniel J Brat; Anita C Bellail; Erwin G Van Meir
Journal:  Neuro Oncol       Date:  2005-04       Impact factor: 12.300

7.  Dichloromethane activation. Direct methylenation of ketones and aldehydes with CH2Cl2 promoted by Mg/TiCl4/THF.

Authors:  Tu-Hsin Yan; Chia-Chung Tsai; Ching-Ting Chien; Chia-Ching Cho; Pei-Chen Huang
Journal:  Org Lett       Date:  2004-12-23       Impact factor: 6.005

8.  Asymmetric [4+3] cycloadditions between benzofuranyldiazoacetates and dienes: formal synthesis of (+)-frondosin B.

Authors:  Jeremy P Olson; Huw M L Davies
Journal:  Org Lett       Date:  2008-01-24       Impact factor: 6.005

9.  Studies toward frondosin A and its analogues. Formal total synthesis of (+/-)-frondosin A.

Authors:  Xin Li; Alec E Keon; Jonathan A Sullivan; Timo V Ovaska
Journal:  Org Lett       Date:  2008-07-09       Impact factor: 6.005

10.  Enhanced production of neutrophil-activating peptide-1/interleukin-8 in rheumatoid arthritis.

Authors:  M Seitz; B Dewald; N Gerber; M Baggiolini
Journal:  J Clin Invest       Date:  1991-02       Impact factor: 14.808

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  4 in total

1.  Facile Access to Cyclooctanoid Ring Systems via Microwave-Assisted Tandem 6-exo dig Cyclization-Rearrangement Sequence.

Authors:  Aaron W Feldman; Sami I Ovaska; Timo V Ovaska
Journal:  Tetrahedron       Date:  2014-07-08       Impact factor: 2.457

2.  Zirconocene catalyzed diastereoselective carbometalation of cyclobutenes.

Authors:  Sudipta Raha Roy; Hendrik Eijsberg; Jeffrey Bruffaerts; Ilan Marek
Journal:  Chem Sci       Date:  2016-08-30       Impact factor: 9.825

Review 3.  Total Synthesis of Bioactive Marine Meroterpenoids: The Cases of Liphagal and Frondosin B.

Authors:  Yan Zong; Weijia Wang; Tao Xu
Journal:  Mar Drugs       Date:  2018-03-31       Impact factor: 5.118

4.  Stereo- and Regiocontrolled Methylboration of Terminal Alkynes.

Authors:  Oleksandr Zhurakovskyi; Rafael M P Dias; Adam Noble; Varinder K Aggarwal
Journal:  Org Lett       Date:  2018-05-09       Impact factor: 6.005

  4 in total

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