Domino Reactions of 1,3-Bis-silyl Enol Ethers with Benzopyrylium Triflates: Efficient Synthesis of Fluorescent 6H-Benzo[c]chromen-6-ones, Dibenzo[c,d]chromen-6-ones, and 2,3-Dihydro-1H-4,6-dioxachrysen-5-ones.

ChemInform ◽  
2006 ◽  
Vol 37 (16) ◽  
Author(s):  
Bettina Appel ◽  
Nehad N. R. Saleh ◽  
Peter Langer
Keyword(s):  
Domino Reactions ◽  
Efficient Synthesis ◽  
Enol Ethers ◽  
Silyl Enol Ethers

scholarly journals Direct Access to Mono-Protected Homoallylic 1,2-Diols via Dual Chromium/ Photoredox Catalysis

2020 ◽  
Author(s):  
Felix Schäfers ◽  
Linda Quach ◽  
J. Luca Schwarz ◽  
Mar Saladrigas ◽  
Constantin G. Daniliuc ◽  
...  
Keyword(s):  
Functional Group ◽  
Protecting Groups ◽  
Direct Access ◽  
Photoredox Catalysis ◽  
Efficient Synthesis ◽  
Enol Ethers ◽  
Silyl Enol Ethers

<p>A dual catalytic strategy enables the efficient synthesis of mono-protected homoallylic 1,2-diols by coupling abundant aldehydes with simple (silyl) enol ethers, thus providing direct access to this important motif without the (super)stoichiometric use of prefunctionalized metal-allyl species. A variety of silyl- and alkyl-based protecting groups is shown and functional group tolerance, chemoselectivity and scalability are highlighted. </p>

Synthesis of 7-Hydroxy-2-(2-hydroxybenzoyl)benzo[c]chromen-6-ones by Sequential Application of Domino Reactions of 1,3-Bis(silyl enol ethers) with Benzopyrylium Triflates.

ChemInform ◽  
2007 ◽  
Vol 38 (12) ◽  
Author(s):  
Mathias Lubbe ◽  
Bettina Appel ◽  
Anke Flemming ◽  
Christine Fischer ◽  
Peter Langer
Keyword(s):  
Domino Reactions ◽  
Enol Ethers ◽  
Silyl Enol Ethers

scholarly journals Direct Access to Mono-Protected Homoallylic 1,2-Diols via Dual Chromium/ Photoredox Catalysis

2020 ◽  
Author(s):  
Felix Schäfers ◽  
Linda Quach ◽  
J. Luca Schwarz ◽  
Mar Saladrigas ◽  
Constantin G. Daniliuc ◽  
...  
Keyword(s):  
Functional Group ◽  
Protecting Groups ◽  
Direct Access ◽  
Photoredox Catalysis ◽  
Efficient Synthesis ◽  
Enol Ethers ◽  
Silyl Enol Ethers

<p>A dual catalytic strategy enables the efficient synthesis of mono-protected homoallylic 1,2-diols by coupling abundant aldehydes with simple (silyl) enol ethers, thus providing direct access to this important motif without the (super)stoichiometric use of prefunctionalized metal-allyl species. A variety of silyl- and alkyl-based protecting groups is shown and functional group tolerance, chemoselectivity and scalability are highlighted. </p>

scholarly journals Efficient Synthesis of Salicylates by Catalytic [3 + 3] Cyclizations of 1,3-Bis(silyl enol ethers) with 1,1,3,3-Tetramethoxypropane.

ChemInform ◽  
2007 ◽  
Vol 38 (51) ◽  
Author(s):  
Muhammad Sher ◽  
T. H. Tam Dang ◽  
Zafar Ahmed ◽  
Muhammad A. Rashid ◽  
Christine Fischer ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Enol Ethers ◽  
Silyl Enol Ethers
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