Results 201 to 210 of about 10,179 (225)
Some of the next articles are maybe not open access.
Chemical & Engineering News Archive, 2012
In the quest to find better catalysts for splitting water into oxygen and hydrogen, chemists have discovered that a small organic molecule related to the vitamin riboflavin can substitute for transition-metal catalysts traditionally used in electrolysis. The research, reported at the American Chemical Society national meeting in Philadelphia on Aug. 20,
openaire +1 more source
In the quest to find better catalysts for splitting water into oxygen and hydrogen, chemists have discovered that a small organic molecule related to the vitamin riboflavin can substitute for transition-metal catalysts traditionally used in electrolysis. The research, reported at the American Chemical Society national meeting in Philadelphia on Aug. 20,
openaire +1 more source
Guanidines: Highly Nucleophilic Organocatalysts
ChemCatChem, 2012AbstractThe nucleophile‐specific parameters N and sN, as defined by log k20 °C=sN(N+E) have been derived for the guanidines 1 a–h from the second‐order rate constants of their reactions with diarylcarbenium tetrafluoroborates in CH2Cl2 at 20 °C. The applicability of these parameters for predicting rate constants of the reactions of guanidines with ...
Biplab Maji +2 more
openaire +1 more source
Chalcogenides as Organocatalysts
Chemical Reviews, 2007McGarrigle, EM +5 more
openaire +3 more sources
Catalysis with Supported Organocatalysts
2011Asymmetric organocatalysis is a rapidly growing area of modern organic chemistry. Organocatalysts can be used for electrophilic substitutions in α-position of saturated aldehydes and ketones as well as for nucleophilic additions to nitroethenes and α,β-unsaturated aldehydes and ketones. Organocatalysed cycloadditions are also described. In recent years
openaire +1 more source