Ieawsuwan, Winai; Ruchirawat, Somsak published an article in 2019, the title of the article was An efficient silver tetrafluoroborate-catalyzed cycloisomerization of ynamides.Synthetic Route of 141940-37-6 And the article contains the following content:
A silver catalyzed-cycloisomerization of N-Boc protected ynamides was developed under mild reaction conditions to provide a wide range of oxazolones I [R1 = (CH2)8OTIPS, Ph, 4-FC6H4, etc.; R2 = Ph, 4-ClC6H4, (CH2)2Ph, etc.] in good to excellent yields. Moreover, the acid-promoted Pictet-Spengler cyclization of oxazolones I was described to furnish the corresponding trans-oxazolidones II [R3 = H, OMe; R4 = R5 = OMe] in moderate yields. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Synthetic Route of 141940-37-6
The Article related to oxazolidone preparation diastereoselective, oxazolone preparation pictet spengler cyclization acid mediated, protected ynamide cycloisomerization silver catalyst, Heterocyclic Compounds (More Than One Hetero Atom): Oxazoles, Isoxazoles and other aspects.Synthetic Route of 141940-37-6
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