139613-10-8

Basic information

• Product Name: 2H-1-Benzopyran-2-one, 4-(2-hydroxyethoxy)-3-nitro-
• CAS NO: 139613-10-8
• Molecular Formula: C11H9NO6
• Mol File: 139613-10-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2H-1-Benzopyran-2-one, 4-(2-hydroxyethoxy)-3-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-1-Benzopyran-2-one, 4-(2-hydroxyethoxy)-3-nitro-(139613-10-8)
• EPA Substance Registry System: 2H-1-Benzopyran-2-one, 4-(2-hydroxyethoxy)-3-nitro-(139613-10-8)

Safety Data

• Hazardous Substances Data: 139613-10-8(Hazardous Substances Data)

Upstream product

• 23248-21-7 potassium ethyleneglycolate 
• 38464-20-9 4-chloro-3-nitro-chromen-2-one 

Relevant articles and documents

SPIROCYCLIC MEISENHEIMER COMPLEXES XXVII. FORMATION OF AN ANIONIC SPIROCOMPLEX OF THE MEISENHEIMER TYPE WITH 1,3-DIOXOLANE RING IN THE 3-NITROCOUMARIN SYSTEM. A NEW METHOD FOR THE PRODUCTION OF 4-ALKOXY-3-NITROCOUMARINS

A new method is proposed for the production of 4-alkoxy-3-nitrocoumarins by the reaction of 4-chloro- and 4-methoxy-3-nitrocoumarins with alcohols in the absence of bases.It was shown that the introduction of a second nitro group at position 6 of the coumarin ring complicates the reaction, leading to the products from opening of the α-pyrone ring.In the presence of bases the 3-nitro-4-(2-hydroxyethoxy)coumarin formed during transetherification of 4-methoxy-3-nitrocoumarin gives the corresponding salts of an anionic spirocomplex of the Meisenheimer type.