Efficient and one-pot synthesis of novel sulfamates from carboxylic acids was written by Atmaca, Ufuk. And the article was included in Tetrahedron in 2019.Name: Isoquinoline-1-carboxylic acid This article mentions the following:
Novel sulfamates RC(O)NHSO3Me [R = cyclohexyl, Ph, H5C6CH2CH2, etc.] from carboxylic acids and methanol in the presence of chlorosulfonyl isocyanate in mild conditions were synthesized. Several acids, bases and solvents effects were investigated for one-pot synthesis of sulfamates as a catalyst. Finally, triflic acid was found to possess efficiently under optimized conditions in acetonitrile. This method was easy to handle, without any metal, environmentally benign and with short reaction time. Sulfamates could be synthesized on grams and milligrams scale. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7Name: Isoquinoline-1-carboxylic acid).
Isoquinoline-1-carboxylic acid (cas: 486-73-7) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Name: Isoquinoline-1-carboxylic acid
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem