Murakami, Yasuoki published the artcileA novel method for the debenzylation of protected indole nitrogen, Related Products of indole-building-block, the publication is Synthesis (1984), 738-40, database is CAplus.
The AlCl3-catalyzed deprotection of indoles I (R = H, OMe, Cl, COMe; R1 = OEt, Me) gave the resp. II. I (R = 7-Cl, R1 = OEt) was stirred with AlCl3 in C6H6 30 min to give 66% II (R = 7-Cl, R1 = OEt).
Synthesis 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, Related Products of indole-building-block.
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