ChemInform Abstract: A New Synthesis of β,γ-Unsaturated Esters from Three Components, Aldehydes, Chloromethyl p-Tolyl Sulfoxide, and tert-Butyl Acetate, via Magnesium Carbenoid 1,2-CH and 1,2-CC Insertion as the Key Reaction.

ChemInform ◽  
2008 ◽  
Vol 39 (2) ◽  
Author(s):  
Tsuyoshi Satoh ◽  
Hironori Yamashita ◽  
Jun Musashi
Synlett ◽  
1990 ◽  
Vol 1990 (10) ◽  
pp. 621-623 ◽  
Author(s):  
Martyn J. Earle ◽  
Robin A. Fairhurst ◽  
Harry Heaney ◽  
George Papageorgiou

1999 ◽  
Vol 23 (4) ◽  
pp. 270-271
Author(s):  
Grigory Veinberg ◽  
Maxim Vorona ◽  
Dan Musel ◽  
Nora Grigan ◽  
Edmunds Lukevics

A 1:1 1,4-dioxane– tert-butyl acetate mixture and BF3 etherate were used for an effective 6-aminopenicillanic acid conversion into the tert-butyl ester (64 ± 3% yield) which could be easily transformed into tert-butyl 6-oxo- and 6-diazo-penicillanates.


2019 ◽  
Vol 17 (26) ◽  
pp. 6465-6469 ◽  
Author(s):  
Charlotte E. Coomber ◽  
Victor Laserna ◽  
Liam T. Martin ◽  
Peter D. Smith ◽  
Helen C. Hailes ◽  
...  
Keyword(s):  

B(OCH2CF3)3-catalysed direct amidations of challenging substrates (polar heteroycles, poorly nucleophilic anilines) work well in tBuOAc under Dean–Stark conditions.


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