Sentence examples for migratory insertion of from inspiring English sources

We introduce a new strategy for synthesis of chiral amines: couplings of α-aminoalkyl nucleophiles generated by enantioselective migratory insertion of 2-azadienes to a Cu-H.

Step 2 of pathway II involves the key migratory insertion of the alkene into the Rh B bonding, leading to formation of the B Cδ bond.

Migratory insertion of 1,3-enyne 2 a then provides rhodacycle 12, which upon reductive elimination would give spiroindene 4 a.

The hydrogenations of reduced forms of N2, starting with N2H2, involve migratory insertion of substrate into Fe–H bonds, one at a time.

Oxidative addition is followed by migratory insertion of the alkene to produce a σ-alkyl complex and β-hydride elimination from this complex leads to the unsaturated product.

Migratory insertion of the alkyne into 12 then occurs to give alkenyliridium species 13,[ 13, 14] which then undergoes 1,4-migration.

The absence of a ligand likely facilitates the formation of four-membered Cu III) species 57 and/or its coordination with diene 8 to form complex 59, which undergoes a migratory insertion to give π-allyl species 60.

After migratory insertion, the free energy of the σ-alkyl complex is lowered when the acetate counterion changes binding mode from mono- to bidentate (IV to V, Figure  1).

Figure 19, II, is constructed on two assumptions that (i) the formation and reactions of hydrides is key; (ii) beginning with N2H2, the hydrogenation of reduced forms of N2 involves migratory insertion into Fe–H bonds.

Starting with D2 2,1 (GDCE=+4.1 kcal mol−1), migratory insertion proceeds by initial rotation of the alkene ligand to achieve a near-planar four-centred transition state, TS D2-E2) 2,1 (GDCE=+19.7 kcal mol−1, C5 C4 Rh C3=7.2°).

Key to this transformation was the insight that a "transmetalation first" mechanism could be operative, and that organonickel complex 67 might undergo migratory insertion faster than oxidative addition of the alkyl halide electrophile.