Gem-Amino ethers

Meta Ligand(s) Electro- negativity /mines Oximes Sulfenimines Iminium salts gem-Amino ether... [Pg.976]

Reactions of crotyl organometallics with aldimines can give linear (4) and/or branched (5) homoallyl-amines, a result of addition at the a- and y-crotyl carbon atoms (equation 1). Although branched products usually dominate, the metal (M) and the imine substituents (R and R ) can strongly influence the regiochemical outcome of the reaction similar effects are observed with crotyl in additions to iminium salts and gem-amino ethers. [Pg.978]

Most of the reported reactions of gem-amino ethers have been confined to the use of crotyl or propar-gyl/allenic reagents. A few examples involving allyl reagents are shown in Table 25 and involve mainly N-(trimethylsilyl)- and N jV-bis(trimethylsilyl)-gem-amino ethers (133 = TMS, R = alkyl R = R =... [Pg.1003]

Table 25 Reactions of Allyl Organometallic Reagents with gem-Amino Ethers (133 Scheme 11)...

Entry R gem-Amino ether (133) R R3 Yield of products (136) (%) MgBr AlyiBr Ref... [Pg.1004]

Table 26 Reactions of Crotyl Organometallic Reagents (137) with gem-Amino Ethers (138 Equation 29)... [Pg.1005]

Table 27 Reaction of Propargyl/Allenic Organometallics (141) with gem-Amino Ethers (142 Equation 30) 1...

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