126856-29-9

Upstream product

• 185316-61-4 2,2-Dimethyl-6-phenylsulfanyl-2H-chromene 
• 82305-04-2 6-bromo-2,2-dimethyl-2H-chromene 
• 120281-58-5 1-bromo-4-<(1,1-dimethyl-2-propynyl)oxy>benzene 

Downstream Products

• 927412-76-8 (S,S)-6-benzenesulfonyl-2,2-dimethyl-1a,7b-dihydro-2H-1,3-dioxa-cyclopropa[a]naphthalene 
• 150520-38-0 (3S,4R)-4-Amino-6-benzenesulfonyl-2,2-dimethyl-chroman-3-ol 

Relevant academic research and scientific papers

A Convenient Synthesis of 6-Substituted-2,2-dimethyl-2H-1-benzopyrans

Various 2,2-dimethyl-6-functional-2H-1-benzopyrans were prepared via a halogen-metal exchange reaction followed by treatment with electrophiles. These 6-functionalized chromenes are important synthetic intermediates for preparation of benzopyran-based pot

Ethanol adducts of 6-sulfonyl-substituted 3-hydroxy-chromans and their use as inhalants in diseases

The invention relates to ethanol adducts of the compounds of the formula I STR1 to a process for their preparation and to their use as inhalants in diseases, in particular in asthma.

Substituted 3,4-dihydro-2H-benzopyrans, processes for their preparation, their use and pharmaceutical products based on these compounds

3,4-Dihydro-2H-benzo[b]pyrans of the formula I STR1 are described, in which R1 is H, OH, (C1 -C2)-alkoxy, (C1 -C2)-alkyl or NR4 R5, R4 and R5 being identica