Nitroethylene can initially react with a chiral vinyl ether, and then react in a [ 3 + 2 ] cycloaddition with an electron deficient alkene such as dimethyl fumarate.
22.
Work done by Bazan et al . found that addition of an electron deficient boron compound activated the phosphorus-oxygen chelated nickel catalyst to oligomerize ethylene into ?-butylene.
23.
Initial reaction constituents of 1, 4-dimetalation of the most electron deficient positions of the aromatic ring in the case of an estrogen, the 1 and 4-positions.
24.
:Such a configuration would be an electron deficient cycle of Three-center two-electron bonds, whereby each hydrogen will have two electrons, and each oxygen will have seven electrons.
25.
Since the material in the belt and rollers can be selected, the accumulated charge on the hollow metal sphere can either be made positive ( electron deficient ) or negative ( excess electrons ).
26.
This type of bonding is associated with electron deficient rhomboid rings in general and is a relatively new research field, fitting in with the already well established three-center two-electron bond.
27.
Indeed, I think it is standard to draw both nitric oxide and nitrogen dioxide as have whole-number bond order and leaving the nitrogen as being electron deficient ( with seven electron ).
28.
Therefore oxygen donates pi electrons more easily to an electron deficient centre ( to N 2 + ) than fluorine does ( to B ) .-- talk ) 12 : 39, 25 April 2012 ( UTC)
29.
An electron-withdrawing group ( EWG ) on the alkene makes it electron deficient and although the reaction mechanism is unclear, involvement of an aryl radical is presumed after loss of nitrogen in the diazonium salt followed by a free radical addition.
30.
Early theoretical studies of ScH 3 revealed that the molecule is unstable, the bulk substance is likely to be a colourless gas with a low activation energy toward the conversion into trimeric clusters due to the electron deficient nature of the monomer, not unlike the group 13 hydrides.
