139255-91-7Relevant academic research and scientific papers
New chiral auxiliaries based on conformation control, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral 2,2-dialkyloxazolidines. Synthesis and conformational analysis of acrylamide derivatives
Kanemasa,Onimura
, p. 8631 - 8644 (2007/10/02)
New chirality-controlling auxiliaries, a C2-symmetric 2,2-dimethylimidazolidine and 4-chiral 2,2-dialkyloxazolidines, are readily prepared from a C2-symmetric 1,2-ethanediamine and naturally occurring α-amino acids, respectively. Con
2,2-dimethyl-4-phenyloxazolidine and 2,2-dimethyl-4,5-diphenylimidazolidine as new chiral auxiliaries. Applications to asymmetric nitrile oxide cycloadditions
Kanemasa,Onimura,Wada,Tanaka
, p. 1185 - 1188 (2007/10/02)
Asymmetric dipolar cycloadditions of a nitrile oxide to the acrylamide derivatives of two new chiral auxiliaries, (R)-2,2-dimethyl-4-phenyloxazolidines and (S,S)-2,2-dimethyl-4,5-diphenylimidazolidine, show satisfactorily high diastereoselectivities (up to 91%).
