An article Mild C-C Bond Formation via Lewis Acid Catalyzed Oxetane Ring Opening with Soft Carbon Nucleophiles WOS:000594404500001 published article about MUKAIYAMA ALDOL REACTION; REACTION 40YEARS; DRUG DISCOVERY; HETEROCYCLES; EXPANSIONS; REAGENTS; LACTONES; ACCESS in [Huang, Hai; Zhang, Tianyu; Sun, Jianwei] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou, Peoples R China; [Sun, Jianwei] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Clear Water Bay, Hong Kong, Peoples R China in 2021, Cited 74. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5. Quality Control of Mequinol
Mild oxetane opening by soft carbon nucleophiles has been developed for efficient C-C bond formation. In the presence of LiNTf2 or TBSNTf2 as catalyst, silyl ketene acetals were found to be effective nucleophiles to generate a wide range of highly oxygenated molecules, which are key substructure in natural products like polyketides. Furthermore, intramolecular oxetane opening by a styrene-based carbon nucleophile via a Prins-type process was also achieved with Sc(OTf)(3) as catalyst, leading to efficient formation of the useful 2,3-dihydrobenzo[b]oxepine skeleton.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles