Gu, Lijun published the artcileMicrowave-assisted synthesis of indole-2-carboxylic acid esters in ionic liquid, Computed Properties of 20538-12-9, the publication is Journal of the Brazilian Chemical Society (2011), 22(11), 2036-2039, database is CAplus.
An improved procedure for the synthesis of indole-2-carboxylic acid esters, e.g. Et 1-methoxy-1H-indole-2-carboxylate, in excellent yields has been achieved by the condensation of 2-halo aryl aldehydes or ketones and Et isocyanoacetate using ionic liquid under controlled microwave irradiation (100 W) at 50 掳C. This method offers a number of advantages in terms of methodol., high-product yield, short period of conversion, mild reaction conditions and easy workup.
Journal of the Brazilian Chemical Society published new progress about 20538-12-9. 20538-12-9 belongs to indole-building-block, auxiliary class Indole,Ester,Ether, name is Ethyl 7-methoxy-1H-indole-2-carboxylate, and the molecular formula is C12H13NO3, Computed Properties of 20538-12-9.
Referemce:
https://www.nature.com/articles/s41429-020-0333-2,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles