Qiu, Di published the artcileDirect synthesis of arylboronic pinacol esters from arylamines, Application of 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole, the publication is Organic Chemistry Frontiers (2014), 1(4), 422-425, database is CAplus.
A metal-free synthetic method based on Sandmeyer-type transformation for preparation of arylboronic pinacol esters from easily available aromatic amines as starting materials was described. This novel transformation affords borylation products in good yields under mild reaction conditions. This strategy can be easily carried out in gram-scale, demonstrating the practical usefulness of the method. Moreover, the Sandmeyer-type transformation can be followed by Suzuki-Miyaura cross-coupling reaction without purification of the arylboronate products.
Organic Chemistry Frontiers published new progress about 642494-36-8. 642494-36-8 belongs to indole-building-block, auxiliary class Indole,Boronic acid and ester,Indole,Boronate Esters,Boronic acid and ester, name is 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole, and the molecular formula is C14H18BNO2, Application of 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole.
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