92976-62-0Relevant academic research and scientific papers
Electrophilicities of bissulfonyl ethylenes
Asahara, Haruyasu,Mayr, Herbert
supporting information; experimental part, p. 1401 - 1407 (2012/07/28)
Kinetics of the reactions of bissulfonyl ethylenes with various carbanions, a sulfur ylide, and siloxyalkenes have been investigated photometrically at 20°C. The second-order rate constants have been combined with the known nucleophile- specific parameters N and sN for the nucleophiles to calculate the empirical electrophilicity parameters E of bissulfonyl ethylenes according to the linear free energy relationship log k(20°C)=s N(N+E). Structure-reactivity relationships are discussed, and it is shown that the electrophilicity parameters E derived in this work can be employed to define the synthetic potential of bissulfonyl ethylenes as Michael acceptors. Copyright
1,1-BIS(BENZENESULFONYL)ETHYLENE: A SYNTHETIC EQUIVALENT OF ETHYLENE 1,2-DIPOLE
Lucchi, Ottorino De,Pasquato, Lucia,Modena, Giorgio
, p. 3643 - 3646 (2007/10/02)
1,1-Bis(benzenesulfonyl)ethylene (1) acts as a synthetic equivalent of ethylene 1,2-dipole as it gives with olefins products derived from a postulated dipolar reaction mechanism that can be readily desulfonylated into the formal ethylene adducts.
1,1-BIS(BENZENESULFONYL)ETHYLENE: A USEFUL SYNTHON FOR NEUTRAL HOMOLOGATION OF KETONES
Lucchi, Ottorino De,Pasquato, Lucia,Modena, Giorgio
, p. 3647 - 3648 (2007/10/02)
1,1-Bis(benzenesulfonyl)ethylene (1) is a versatile building block in organic synthesis since it reacts under neutral conditions with enolizable ketones to afford adducts that can be subjected to a variety of synthetic transformations.
