33912-39-9Relevant academic research and scientific papers
Copper-Catalyzed Oxidative Benzylic C(sp3)?H Cyclization for the Synthesis of β-Lactams
Nozawa-Kumada, Kanako,Saga, Satoshi,Matsuzawa, Yuta,Hayashi, Masahito,Shigeno, Masanori,Kondo, Yoshinori
, p. 4496 - 4499 (2020/04/10)
β-Lactams are important structural motifs because of their ubiquity in natural products and pharmaceuticals. We report herein a Cu-catalyzed intramolecular oxidative C(sp3)?H amidation for the synthesis of β-lactams using tBuOOtBu. This method
Synthesis of Exclusively 4-Substituted β-Lactams through the Kinugasa Reaction Utilizing Calcium Carbide
Hosseini, Abolfazl,Schreiner, Peter R.
, p. 3746 - 3749 (2019/05/24)
A new Kinugasa reaction protocol has been elaborated for the one-pot synthesis of 4-substituted β-lactams utilizing calcium carbide and nitrone derivatives. Calcium carbide is thereby activated by TBAF·3H2O in the presence of CuCl/NMI. The ease of synthesis and use of inexpensive chemicals provides rapid access of practical quantities of β-lactams exclusively substituted at position 4.
Synthesis and Stereochemistry of 3-(α-Hydroxybenzyl)-1,4-diphenyl-2-azetidinones
Otto, Hans-Hartwig,Mayrhofer, Roswitha,Bergmann, Hans-Joachim
, p. 1152 - 1161 (2007/10/02)
Aldol reaction between benzaldehydes and 1,4-diphenyl-2-azetidinones 1 catalyzed by lithium diisopropylamide results in formation of the title compound The reactions give satisfactory yields and high diastereoselectivity at three centres in forming the αS
