61820-00-6Relevant academic research and scientific papers
A Facile Method for the Cleavage of Acetals by the Combined Use of Samarium Trichloride and Chlorotrimethylsilane
Ukaji, Yutaka,Koumoto, Naosuke,Fujisawa, Tamotsu
, p. 1623 - 1626 (2007/10/02)
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.
Experimental and Theoretical Studies on the Mechanism of 1,2-Migration of Vinyl and Formyl Substituents in Free Radicals
Giese, Bernd,Heinrich, Nikolaus,Horler, Hans,Koch, Wolfram,Schwarz, Helmut
, p. 3528 - 3535 (2007/10/02)
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.
