On November 7, 2007, Kakei, Hiroyuki; Sone, Toshihiko; Sohtome, Yoshihiro; Matsunaga, Shigeki; Shibasaki, Masakatsu published an article.HPLC of Formula: 5034-06-0 The title of the article was Catalytic Asymmetric Cyclopropanation of Enones with Dimethyloxosulfonium Methylide Promoted by a La-Li3-(Biphenyldiolate)3 + NaI Complex. And the article contained the following:
Catalytic asym. cyclopropanation of enones with dimethyloxosulfonium methylide using a La-Li3-(biphenyldiolate)3 + NaI complex is described. The present method is complementary to the previously reported catalytic enantioselective methods in terms of ylides used, and trans products, e.g., I, were exclusively obtained in good yield (96-73%) and high enantioselectivity (99-84% ee). Use of biphenyldiol and NaI additive was essential to achieve high enantioselectivity. The experimental process involved the reaction of trimethyloxosulphonium chloride(cas: 5034-06-0).HPLC of Formula: 5034-06-0
The Article related to enone dimethyloxosulfonium methylide lanthanium chiral biphenyldiol complex asym cyclopropanation, cyclopropyl ketone derivative stereoselective preparation, asym cyclopropanation catalyst lanthanium chiral biphenyldiol complex and other aspects.HPLC of Formula: 5034-06-0
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