Sentences with word «nucleophilic»

Chemists often use nucleophilic additions in organic synthesis to turn molecules with double bonds into more functionalised compounds.

Nucleophilic substitution reactions play an important role in the formation of organic compounds.

Because «like species repel,» electron - rich species should not react with other electron - rich species, so benzene should never undergo direct nucleophilic alkylation.

Published in Chemical Science, the reaction employs a chiral nickel catalyst and an activating agent at low temperatures to couple nucleophilic arenes, common motifs in bioactive compounds, with a feedstock chemical known as pyridine.

Researchers in the Doyle lab at Princeton have developed a direct and selective cross-coupling reaction that employs a chiral nickel catalyst and an activating agent at low temperatures to couple nucleophilic arenes, common motifs in bioactive compounds, with a feedstock chemical known as pyridine.

Presumably, nucleophilic residues within a scrapie agent protein undergo carbethoxylation on reaction with diethyl pyrocarbonate, and subsequent addition of hydroxylamine displaces these carbethoxy groups.

Nonetheless, on page 1168 of this issue, Wilson et al. (2) report the facile nucleophilic alkylation of benzene accomplished through highly reactive alkylcalcium nucleophiles.

Kobayashi K, Narumi T, Oishi S, Ohno H, Fujii N. Amino acid - based synthesis of trifluoromethylalkene dipeptide isosteres by alcohol - assisted nucleophilic trifluoromethylation and organozinc - copper - mediated S (N) 2» alkylation.

Includes equations and nucleophilic addiiton elimination mechanism.

A 29 slide presentation with exercises covering the details of alcohol oxidation, carbonyl reduction, and nucleophilic addition mechanisms with cya...

First, they plan to try compounds which seek out positive charge, or are «nucleophilic», such as ammonia, hydroxyamines and thiols.

One of the most studied reactions in physical organic chemistry is the nucleophilic substitution reaction.

One such reaction, a nucleophilic addition, adds a negatively charged species such as methoxy (MeO ---RRB- or diethylamino (Et2N ---RRB- across one of the double bonds, to form a more complicated product.

Two points — 1) ice core data are unreliable for absolute CO2 atmospheric concentration determinations due to diffusion (CO2 is electrophilic; H2O is nucleophilic) see Ahn et al, J Glaciology, 54:685 - 695.