63982-24-1Relevant articles and documents
Urethanes synthesis from oxamic acids under electrochemical conditions
Ogbu, Ikechukwu Martin,Lusseau, Jonathan,Kurtay, Gülbin,Robert, Frédéric,Landais, Yannick
, p. 12226 - 12229 (2020/10/26)
Urethane synthesis via oxidative decarboxylation of oxamic acids under mild electrochemical conditions is reported. This simple phosgene-free route to urethanes involves an in situ generation of isocyanates by anodic oxidation of oxamic acids in an alcoholic medium. The reaction is applicable to a wide range of oxamic acids, including chiral ones, and alcohols furnishing the desired urethanes in a one-pot process without the use of a chemical oxidant.
Synthesis of carbamates from amines and dialkyl carbonates: Influence of leaving and entering groups
Tundo, Pietro,McElroy, C. Robert,Aricò, Fabio
experimental part, p. 1567 - 1571 (2010/09/05)
A number of carbamates were synthesised through a halogen-free process by reacting amines with symmetrical and unsymmetrical carbonates. The results obtained showed a specific trend of preferred leaving groups (in the dialkyl carbonates) depending on whether a catalyst or a base was used. On the other hand, investigations conducted on the preferred entering groups (amines) for the synthesis of carbamates showed the same trend regardless of whether a catalyst or a base was used. Finally, in accordance with the results obtained, it was possible to synthesise sterically hindered carbamates in high yield by transesterification of methyl carbamate with a sterically hindered alcohol. Georg Thieme Verlag Stuttgart New York.
Facile and Selective O-Alkyl Transesterification of Primary Carbamates with Titanium(IV) Alkoxides
Shapiro, Gideon,Marzi, Martin
, p. 7096 - 7097 (2007/10/03)
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