31502-23-5Relevant academic research and scientific papers
New Synthetic Methods, 12. - The Stereoselectivity of the Ramberg-Baecklund Rearrangement
Scholz, Dieter,Burtscher, Peter
, p. 517 - 521 (2007/10/02)
The influence of strong and weak bases in different solvents on the (E)/(Z) ratio of the Ramberg-Baecklund olefin synthesis of α-halosulfoncarboxylic acids in studied.With potassium tert-butoxide in dry dimethyl sulfoxide (E) ratios of more than 97 percent are achieved.With weak bases, such as 0.25 N sodium hydroxide, we found only equal amounts of (E) and (Z) olefins, apart from a few exceptions.
