Silver-Catalyzed Carboxylative Cyclization of Primary Propargyl Alcohols with CO2.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b00156
Abstract: By using silver complexes with bulky ligands such as DavePhos or N-heterocyclic carbenes, propargylic alcohols are smoothly converted with CO2 into a unique class of unexplored cyclic alkylidene carbonates. These systems, for the first time,… read more here.
Keywords: silver catalyzed; carboxylative cyclization; cyclization primary; primary propargyl ... See more keywords
Organocatalyzed carboxylative cyclization of propargylic amides with atmospheric CO2 towards oxazolidine-2,4-diones
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DOI: 10.1039/c8gc03929a
Abstract: A facile and practical TBD-catalyzed carboxylative cyclization of propargylic amides with atmospheric CO2 has been developed for the formation of (Z) 5-alkylidene 1,3-oxazolidine-2,4-diones. read more here.
Keywords: carboxylative cyclization; amides atmospheric; oxazolidine diones; propargylic amides ... See more keywords
Multifunctional 1,3-diphenylguanidine for the carboxylative cyclization of homopropargyl amines with CO2 under ambient temperature and pressure.
Sign Up to like & getrecommendations! Published in 2019 at "Chemical communications"
DOI: 10.1039/c9cc07671a
Abstract: Herein, we report that 1,3-diphenylguanidine (DPG) could be utilized for the carboxylative cyclization of homopropargyl amines with CO2 under ambient temperature and pressure, in combination with AgSbF6, which enabled the synthesis of both chiral and… read more here.
Keywords: cyclization homopropargyl; co2 ambient; ambient temperature; homopropargyl amines ... See more keywords