Reaction of carboxylic acid fluorides and perfluoropropylene oxide with (acyloxymethyl)dimethylethoxysilanes

Author(s):  
K. A. Andrianov ◽  
A. K. Dabagova ◽  
V. V. Shokina ◽  
I. L. Knunyants
1976 ◽  
Vol 5 (4) ◽  
pp. 303-306 ◽  
Author(s):  
Teruaki Mukaiyama ◽  
Toshio Tanaka

1976 ◽  
Vol 5 (12) ◽  
pp. 1407-1408 ◽  
Author(s):  
Nobuo Ishikawa ◽  
Shigekuni Sasaki

Synlett ◽  
2020 ◽  
Author(s):  
Matthew N. Hopkinson ◽  
Andreas Mavroskoufis

AbstractExcitation of carbonyl groups is one of the most widely employed activation modes in photochemistry. Many synthetically important transformations, however, are successful only with aldehydes and ketones; substrates at the carboxylic acid oxidation level remain underrepresented. We have developed a conceptually novel strategy for enabling ‘ketone-like’ photochemistry with carboxylic acid derivatives that employs an N-heterocyclic carbene (NHC) organocatalyst. Using this ‘Photo-NHC’ catalysis approach, a proof-of-concept photoenolization/Diels–Alder (PEDA) reaction between acid fluorides and trifluoroacetophenones was developed. Stoichiometric studies and TD-DFT calculations supported a mechanistic scenario in which the NHC influences the absorption wavelength and inherent photochemical reactivity of the carbonyl group during the catalytic cycle.1 Introduction2 Photo-NHC Catalysis3 Conclusions


2019 ◽  
Vol 141 (43) ◽  
pp. 17322-17330 ◽  
Author(s):  
Christian A. Malapit ◽  
James R. Bour ◽  
Simon R. Laursen ◽  
Melanie S. Sanford

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