30241-53-3

Upstream product

• 37703-56-3 (2-chlorophenyl)(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methanone 
• 30241-51-1 3-methyl-5-phenoxy-1-phenyl-1H-pyrazole-4-carboxylic acid 
• 30241-63-5 (5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-(2-hydroxy-phenyl)-methanone 
• 609-65-4 o-chlorobenzoyl chloride 
• 2555-37-5 3-acetyl-4-hydroxychromen-2-one 
• 947-95-5 5-chloro-4-formyl-3-methyl-1-phenyl-1H-pyrazole 
• 26260-02-6 2-iodobenzaldehyde 
• 89-25-8 edaravone 
• 6630-33-7 ortho-bromobenzaldehyde 
• 89-98-5 2-chloro-benzaldehyde 
• 30241-46-4 3-methyl-5-phenoxy-1-phenyl-1H-pyrazole-4-carbaldehyde 
• 2587-10-2 4-hydroxy-3-(N-(2-phenylamino)ethanimidoyl)-2H-chromen-2-one 
• 100-63-0 phenylhydrazine 
• 393-52-2 2-Fluorobenzoyl chloride 

Downstream Products

• 30241-60-2 4-ethyl-3-methyl-1-phenyl-1,4-dihydro-chromeno[2,3-c]pyrazol-4-ol 
• 30241-59-9 3,4-dimethyl-1-phenyl-1,4-dihydro-chromeno[2,3-c]pyrazol-4-ol 
• 30241-55-5 3-methyl-1-phenyl-1,4-dihydro-chromeno[2,3-c]pyrazol-4-ol 
• 30241-64-6 3-methyl-1-phenylchromeno[2,3-c]pyrazole-4(1H)-thione 
• 47480-62-6 dimethyl-[3-(3-methyl-1-phenyl-1H-chromeno[2,3-c]pyrazol-4-ylidene)-propyl]-amine 
• 30241-56-6 4-(3-dimethylamino-propyl)-3-methyl-1-phenyl-1,4-dihydro-chromeno[2,3-c]pyrazol-4-ol 

Relevant academic research and scientific papers

Copper-Catalyzed Tandem O-Arylation-Oxidative Cross Coupling: Synthesis of Chromone Fused Pyrazoles

Intermolecular tandem copper-catalyzed O-arylation-oxidative acylation (cross dehydrogenative coupling-CDC) has been developed under air as an oxidant. The reaction between 2,4-dihydro-3H-pyrazol-3-ones and ortho-halo aryl carboxaldehydes furnished the co

Green method for the synthesis of chromeno[2,3- C ]pyrazol-4(1 H)-ones through ionic liquid promoted directed annulation of 5-(aryloxy)-1 H -pyrazole-4-carbaldehydes in aqueous media

The first classical heterocyclic ionic liquid (IL) promoted C-H bond oxidant cross-coupling reaction for the intramolecular annulation of 5-(aryloxy)-1H-pyrazole-4-carbaldehydes to chromeno[2,3-c]pyrazol-4(1H)-ones has been disclosed. The promoter 1,3-dibutyl-1H-benzo[d][1,2,3]triazol-3-ium bromide can be easily recycled and reused with the same efficacies for at least five cycles in aqueous medium. The strategy works smoothly and provides an applicable protocol to construct a wide range of products.

Tri- and tetracyclic heteroaromatic systems: Synthesis of novel benzo-, benzothieno- and thienofused pyrano[2,3-c]pyrazol-4(1H)-ones

A straightforward, two-step synthesis of chromeno[2,3-c]pyrazol-4(1H)-ones, thieno[2′,3′:5,6]pyrano[2,3-c]pyrazol-4(1H)-ones, and [1]benzo-thieno[2′,3′:5,6]pyrano[2,3-c]pyrazol-4(1H)-ones, respectively, is presented. Hence, treatment of 1-substituted or 1