7355-12-6Relevant academic research and scientific papers
N-Ethyldiisopropylamine and Sulfur Dioxide Solutions. 2. Reactions with Conjugate Acceptors
Eugene, Fabrice,Langlois, Bernard,Laurent, Eliane
, p. 2599 - 2603 (2007/10/02)
Solutions of sulfur dioxide and N-ethyldiisopropylamine (EDIA) are able to reduce α,β-unsaturated-γ-dicarbonyl compounds (esters or ketones) into α-dicarbonyl alkanes.In contrast, monoactivated Michael acceptors, such as acrylates, give symmetrical sulfones.These processes involve the conjugate addition of HSO2(-), formed from a charge-transfer complex between EDIA and SO2.Secondary amines are formed as byproducts.Triethylamine, which forms a more stable complex with sulfur dioxide than EDIA, is far less reactive toward the same substrates.
REDUCTION AND SULFONYLATION OF OLEFINS BY SOLUTIONS OF DIISOPROPYLETHYLAMINE AND SULFUR DIOXIDE
Eugene, Fabrice,Langlois, Bernard,Laurent, Eliane
, p. 377 - 378 (2007/10/02)
Solutions of diisopropylethylamine and SO2 deliver sulfones from acrylates and reduce olefins substituted by two carbonyl moieties in α and β positions.
