In the modern synthesis, zinc is the reductant in the presence of a base.
They cannot know of the presence of a Romulan base here.
Some metal hydrides form when a metal complex is treated with hydrogen in the presence of a base.
As noted some complexes heterolytically cleave dihydrogen in the presence of a base.
Ligation does not generally occur in the presence of a mismatched 3' base.
The presence of a large American military base in the country provides the country with a guaranteed source of defense and national security.
Typically, such reactions are conducted in the presence of a base such as pyridine.
The compound can be made by reaction of acetylene and methanol in presence of a base.
Dissociation can occur in the presence of a suitable base.
This reaction proceeds by reacting phenylacetonitrile with 2-chloropyridine in the presence of a base.