Structure and reactivity of a sulfoximine-stabilized chiral dilithiocarbanion
作者:Jürgen F. K. Müller、Markus Neuburger、Margareta Zehnder
DOI:10.1002/hlca.19970800717
日期:1997.11.3
mixed tetrameric mono- and dilithio salt. Unexpectedly, a separation of the enantiomers in mono-and dilithiated antipodes with respect to the chirality center on the S-atom is observed. Dilithiation of S-ethyl-N-methyl-S-phenylsulfoximine (1) affords a chiral dinucleophile which undergoes highly regie- and stereoselective alkylation reactions with bis-electrophiles.