Stereoselective alkene synthesis

Ebook "Stereoselective alkene synthesis (Topics in Current chemistry, Volume 327)" highlight the recent development of the widely used methods for olefin synthesis, namely Wittig reactions (Chapter 7) and olefin metathesis (Chapter 6). For olefin metathesis, the focus is put on its applications in complex natural product synthesis.

283p coduathanh1122 27-03-2024 4 1   Download

Continued part 1, part 2 of ebook "Advanced organic chemistry - Part B: Reactions and Synthesis" has presents the following content: organometallic compounds of group I and II metals; reactions involving transition metals; carbon-carbon bond-forming reactions of compounds of boron, silicon, and tin; reactions involving carbocations, carbenes, and radicals as reactive intermediates; aromatic substitution reactions; oxidations; multistep syntheses;...

701p dieptieuung 19-07-2023 7 2   Download

We report a novel microwave-assisted two-step, one-pot protocol for the synthesis of olefins (alkenes) via Wittig reaction. The reaction was carried out under solvent-free conditions using basic alumina both as a heterogeneous catalyst and a solid support. Varieties of aromatic aldehydes were converted into their corresponding olefins within 30–50 min with good to excellent yields. An excellent predominance of E -isomers over Z -isomers (up to 100% E-selectivity) for all the olefin products was observed.

8p tudichquannguyet 29-11-2021 19 1   Download