81940-22-9

Basic information

• Product Name: 4-Pyridinecarboxylic acid, 3-[[1-(phenylsulfonyl)-1H-indol-2-yl]carbonyl]-
• CAS NO: 81940-22-9
• Molecular Formula: C21H14N2O5S
• Molecular Weight: 406.419
• Mol File: 81940-22-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-Pyridinecarboxylic acid, 3-[[1-(phenylsulfonyl)-1H-indol-2-yl]carbonyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Pyridinecarboxylic acid, 3-[[1-(phenylsulfonyl)-1H-indol-2-yl]carbonyl]-(81940-22-9)
• EPA Substance Registry System: 4-Pyridinecarboxylic acid, 3-[[1-(phenylsulfonyl)-1H-indol-2-yl]carbonyl]-(81940-22-9)

Safety Data

• Hazardous Substances Data: 81940-22-9(Hazardous Substances Data)

Upstream product

• 98-09-9 benzenesulfonyl chloride 
• 120-72-9 indole 
• 4664-08-8 cinchomeronic anhydride 
• 40899-71-6 1-benzenesulfonylindole 
• 490-11-9 3,4-pyridinecarboxylic acid 

Relevant articles and documents

An Efficient Synthesis of Ellipticine

A synthesis of the antitumor pyridocarbazole alkaloid ellipticine (1a) is described in which the key steps are, successively, a highly regioselective acylation of 2-lithio-1-(phenylsulfonyl)indole (4) with 3,4-pyridinedicarboxylic anhydride (3) and acetic anhydride induced ring closure to give keto lactam 8.Further manipulation affords ellipticine in 54percent overall yield from indole (2a).