The reactivities of silylenes are similar to those of carbenes, and insertion to C-H bonds and C-C bonds generally does not happen and complexation to Lewis base takes place.
32.
U . S . coach Erv Hunt, who has little Olympic experience, decided to go with Harden instead of Lewis based on the team's Friday semifinal win in 37.96.
33.
"Donor number and donor acceptor scale " measures polarity in terms of how a solvent interacts with specific substances, like a strong Lewis acid or a strong Lewis base.
34.
U . S . coach Erv Hunt, who has little Olympic experience, decided to go with Harden instead of Lewis based on the team's Friday semifinal win in 37 . 96.
35.
Simply put, they proposed that to be sweet, a compound must contain a hydrogen bond donor ( AH ) and a Lewis base ( B ) separated by about 0.3 nanometres.
36.
For example, chiral phosphines containing a Lewis base, a Bronsted acid, and an acid-activated Bronsted base were developed for an asymmetric aza-MBH reaction ( 86-96 % yield, 79-92 % ee ).
37.
At Madigan Army Medical Center, part of the Fort Lewis base complex, the deputy commander for medical services was recently sued for alleged sexual harassment by a civilian attorney on his staff.
38.
A promising organocatalytic method for the asymmetric hydrogenation of 2, 3-substituted indoles utilizing a chiral Lewis base also exists, although the observed ee's are not quite equivalent to those of the metal-based hydrogenations.
39.
One of the most common examples of altered asymmetric induction selectivity requires an ?-carbon substituted with a component with Lewis base character ( i . e . O, N, S, P substituents ).
40.
In chemistry, the class of electron donors that donate not just one, but a set of two paired electrons that form a covalent bond with an electron acceptor molecule, is known as a Lewis base.
