A Facile Method for the Cleavage of Acetals by the Combined Use of Samarium Trichloride and Chlorotrimethylsilane
Cleavage of acetals by a stoichiometric or a catalytic amount of samarium trichloride and chlorotrimethylsilane in the absence of a proton source proceeded smoothly giving the corresponding carbonyl compounds in high yields.
Ukaji, Yutaka,Koumoto, Naosuke,Fujisawa, Tamotsu
p. 1623 - 1626
(2007/10/02)
Ketones from carboxylic acids and grignard reagents: Methyl 6-oxodecanoate
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Fujisawa, Tamotsu,Sato, Toshio
p. 116 - 116
(2017/05/17)
Experimental and Theoretical Studies on the Mechanism of 1,2-Migration of Vinyl and Formyl Substituents in Free Radicals
Vinyl and formyl groups undergo rearrangements of the type X=CH-CMe2-C*H2 -> C*Me2-CH2-CH=X (X = CH2 or O) with comparable rates (106 - 107 l/mol*s, 20 deg C).This result is in line with high-level ab initio calculations performed on the basic systems, i.e.X=CH-CH2-C*H2, which give barriers of activation of 14.9 (CH2=CH-CH2-C*H2) and 19.2 kcal/mol (O=CH-CH2-C*H2), respectively.The calculations suggest that the rearrangements proceed via cyclopropane-like intermediates.
Giese, Bernd,Heinrich, Nikolaus,Horler, Hans,Koch, Wolfram,Schwarz, Helmut
p. 3528 - 3535
(2007/10/02)
Convenient Ketone Synthesis by the Reaction of Organocuprate Reagents with 2-Pyridyl Esters
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Kim, Sunggak,Lee, Jae In
p. 2608 - 2610
(2007/10/02)
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