Ketene Acetals. I. A New Synthesis of Ketene Acetals and Ortho Esters1

1964 ◽  
Vol 29 (9) ◽  
pp. 2773-2775 ◽  
Author(s):  
William C. Kuryla ◽  
Donald G. Leis
Keyword(s):  
New Synthesis ◽  
Ketene Acetals

Reactions of Ketene Acetals. IV. A New Synthesis of α-Pyrones. III

1975 ◽  
Vol 53 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Alain Bélanger ◽  
Paul Brassard
Keyword(s):  
New Synthesis ◽  
One Step ◽  
Ketene Acetals ◽  
Mechanism Of The Reaction

A simple one-step synthesis of α-pyrones and 3-chloro-α-pyrones from β-functionalized α, β-enones and ketene acetals has been devised. The method has also been adapted to the preparation of some 4-methoxy-α-pyrones. Finally the mechanism of the reaction has been investigated.

Reactions of Ketene Acetals. III. A New Synthesis of α-Pyrones. II

1975 ◽  
Vol 53 (2) ◽  
pp. 195-200 ◽  
Author(s):  
Alain Bélanger ◽  
Paul Brassard
Keyword(s):  
Reaction Conditions ◽  
Unsaturated Aldehydes ◽  
New Synthesis ◽  
Aldehydes And Ketones ◽  
Ketene Acetals ◽  
By Products

The cycloaddition of chloroketene acetals to α, β-unsaturated aldehydes and ketones gives the corresponding 2,2-dialkoxy-3-chloro-3,4-dihydro-1,2-pyrans. Treatment of these compounds with alkoxides in dimethylsulfoxide or dimethylformamide yields α-pyrones directly. Some intermediates and by-products have been identified and the reaction conditions have been studied.

Tandem Carbon-Radical Peroxidation−Addition to Carbonyl Groups Reaction. A New Synthesis of Steroidal β-Peroxy Lactones

1996 ◽  
Vol 61 (26) ◽  
pp. 9635-9635
Author(s):  
Alicia Boto ◽  
Rosendo Hernández ◽  
Ernesto Suárez ◽  
Carmen Betancor ◽  
María S. Rodríguez
Keyword(s):  
Carbonyl Groups ◽  
New Synthesis

1,3-Selenaphospholes: A New Synthesis from 1,2,3-Selenadiazoles and Kinetically Stabilized Phosphaalkynes1

Synlett ◽  
1991 ◽  
Vol 1991 (04) ◽  
pp. 356-358 ◽  
Author(s):  
Bernd Burkhart ◽  
Steffen Krill ◽  
Yoshinori Okano ◽  
Wataru Ando ◽  
Manfred Regitz
Keyword(s):  
New Synthesis

A New Synthesis and Analysis of Silica Nanowire Periodically Wrapped by Nano-spheres

2016 ◽  
Vol 31 (5) ◽  
pp. 523
Author(s):  
MA Hong-Bing ◽  
BAI Hua ◽  
XUE Chen ◽  
TAO Peng-Fei ◽  
XU Qun-Feng ◽  
...  
Keyword(s):  
New Synthesis
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