Literature DB >> 17559222

Inverse-electron-demand hetero-Diels-Alder reaction of beta,gamma-unsaturated alpha-ketophosphonates catalyzed by prolinal dithioacetals.

Sampak Samanta1, Jonathan Krause, Tanmay Mandal, Cong-Gui Zhao.   

Abstract

Some novel prolinal dithioacetal derivatives were studied as catalysts for the inverse-electron-demand hetero-Diels-Alder reaction of enolizable aldehydes and beta,gamma-unsaturated alpha-ketophosphonates. The corresponding 5,6-dihydro-4H-pyran-2-ylphosphonates were obtained in good ee values (up to 94% ee).

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Year:  2007        PMID： 17559222     DOI： 10.1021/ol071097y

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  6 in total

1.  Quinidine thiourea-catalyzed enantioselective synthesis of β-nitrophosphonates: Beneficial effects of molecular sieves.

Authors:  Santhi Abbaraju; Mayur Bhanushali; Cong-Gui Zhao
Journal:  Tetrahedron       Date:  2011-09-30       Impact factor: 2.457

2.  Organocatalytic High Enantioselective Synthesis of β-Formyl-α-hydroxyphosphonates.

Authors:  Sandun Perera; Vijaya Kumar Naganaboina; Long Wang; Bin Zhang; Qunsheng Guo; Laxmidhar Rout; Cong-Gui Zhao
Journal:  Adv Synth Catal       Date:  2011-06-30       Impact factor: 5.837

3.  Developing novel organocatalyzed aldol reactions for the enantioselective synthesis of biologically active molecules.

Authors:  Mayur Bhanushali; Cong-Gui Zhao
Journal:  Synthesis (Stuttg)       Date:  2011-06       Impact factor: 3.157

4.  Organocatalytic Highly Enantioselective Tandem Michael-Knoevenagel Reaction for the Synthesis of Substituted Thiochromanes.

Authors:  Rajasekhar Dodda; Tanmay Mandal; Cong-Gui Zhao
Journal:  Tetrahedron Lett       Date:  2008-03-17       Impact factor: 2.415

5.  Direct Synthesis of Unsymmetrical Dithioacetals.

Authors:  Sabine Bognar; Manuel van Gemmeren
Journal:  Chemistry       Date:  2021-01-18       Impact factor: 5.236

6.  Oxadendralenes in asymmetric organocatalysis for the construction of tetrahydroisochromenes.

Authors:  Niels Hammer; Lars A Leth; Julian Stiller; Magnus E Jensen; Karl Anker Jørgensen
Journal:  Chem Sci       Date:  2016-02-17       Impact factor: 9.825
  6 in total

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