nBu4NI-catalyzed C3-formylation of indoles with N-methylaniline.

nBu4NI-catalyzed C3-formylation of indoles with N-methylaniline.

Chemical communications (Cambridge, England) (2012-04-20)

Lan-Tao Li, Juan Huang, Hong-Ying Li, Li-Juan Wen, Peng Wang, Bin Wang

ABSTRACT

nBu(4)NI-catalyzed C3-selective formylation of N-H and N-substituted indoles by using N-methylaniline as a formylating reagent was first successfully demonstrated.

MATERIALS

Product Number

Brand

Product Description

49636

Supelco

N-Methylaniline, analytical standard

65760

Sigma-Aldrich

N-Methylaniline, purum, ≥98.0% (GC)

M29304

Sigma-Aldrich

N-Methylaniline, 98%

236233

Sigma-Aldrich

N-Methylaniline, ≥99%

229911

Sigma-Aldrich

Sodium iodide, ≥99.99% trace metals basis

409286

Sigma-Aldrich

Sodium iodide, 99.999% trace metals basis

439681

Sigma-Aldrich

Sodium iodide, AnhydroBeads^™, −10 mesh, 99.999% trace metals basis

217638

Sigma-Aldrich

Sodium iodide, ReagentPlus^®, ≥99%

383112

Sigma-Aldrich

Sodium iodide, ACS reagent, ≥99.5%

03129

Sigma-Aldrich

Sodium iodide, puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5% (calc. to the dried substance)