109397-15-1Relevant academic research and scientific papers
Calcium-catalyzed cycloisomerization of enynes
Meyer, Vera J.,Fu, Liang,Marquardt, Fabian,Niggemann, Meike
, p. 1943 - 1947 (2013)
A cycloisomerization of enynes with a benign calcium catalyst is presented exploring a complementary reactivity to that usually found in transition and noble metal-catalyzed reactions. Thereby, a systematic investigation of the π-activation of alkynes with reactive carbocations has been realized and ketones of various ring sizes were easily accessed. We are certain that these basic investigations will pave the way for the elaboration of further reactions based on the reaction principles discovered in the area of noble metal catalysis. Copyright
Catalytic intramolecular carbonyl-ene reaction with ketones: Evidence for a retro-ene process
Tremel,Iacobucci,Massi,Olivero,Gal,Du?ach
, p. 7453 - 7458 (2015)
The ene-process with unsaturated ketones was catalyzed by Lewis acids such as bismuth or indium triflates. Unlike aldehydes, the reverse ene-process occurs with ketones, resulting in incomplete conversions, as shown by control experiments and analysis by ESI-MS.
