156755-23-6

Basic information

• Product Name: CHEMBRDG-BB 7041866
• Synonyms: CHEMBRDG-BB 7041866;6-BROMO-4-PHENYLCHROMAN-2-ONE;6-Bromo-3,4-dihydro-4-phenyl-2H-1-benzopyran-2-one;2H-1-Benzopyran-2-one, 6-broMo-3,4-dihydro-4-phenyl-;6-bromo-3,4-dihydro-4-phenylchromen-2-one
• CAS NO: 156755-23-6
• Molecular Formula: C₁₅H₁₁BrO₂
• Molecular Weight: 303.15
• Mol File: 156755-23-6.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 373.7 °C at 760 mmHg
• Flash Point: 179.8 °C
• Appearance: /
• Density: 1.484
• CAS DataBase Reference: CHEMBRDG-BB 7041866(CAS DataBase Reference)
• NIST Chemistry Reference: CHEMBRDG-BB 7041866(156755-23-6)
• EPA Substance Registry System: CHEMBRDG-BB 7041866(156755-23-6)

Safety Data

• Hazardous Substances Data: 156755-23-6(Hazardous Substances Data)

Usage

Uses

6-Bromo-3,4-dihydro-4-phenyl-2H-1-benzopyran-2-one is an intermediate in the synthesis of N-substituted amides. Also used in the preparation of Fesoterodine (F321300) derivatives.

Upstream product

• 106-41-2 4-bromo-phenol 
• 621-82-9 Cinnamic acid 
• 140-10-3 (E)-3-phenylacrylic acid 

Downstream Products

• 156755-24-7 methyl 3-[2-(benzyloxy)-5-bromophenyl]-3-phenylpropanoate 
• 286930-03-8 2-[(1R)-3-(dipropan-2-ylamino)-1-phenylpropyl]-4-(hydroxymethyl)phenyl 2-methylpropanoate fumarate 
• 950773-38-3 R-(-)-[3-(2-benzyloxy-5-bromophenyl)-3-phenylpropyl]diisopropylamine 
• 1429299-09-1 (3R)-3-[2-(benzyloxy)phenyl]-3-phenyl-N,N-di(propan-2-yl)propan-1-amine 
• 865889-33-4 R-(-)3-(2-benzyloxy-5-bromophenyl)-3-phenylpropionic acid 
• 1390644-52-6 2-((R)-3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyi)phenyl-3-bromo-2-methyl propanoate 
• 1390644-50-4 (R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenyl-2-bromo-2-methyl propanoate 
• 1390644-42-4 3-(3-(diisopropylamino)-1-phenylpropyl)-4-(methacryloyloxy)benzoic acid 
• 1390644-41-3 (R)-3-(3-(diisopropylamino)-1-phenylpropyl)-4-(methacryloyloxy)benzoic acid 
• 1390644-39-9 (R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-formylphenyl methacrylate 
• 1390644-37-7 (R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxylmethyl)phenyl methacrylate 
• 1390644-38-8 (R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxylmethyl)phenylmethacrylate mandelate 
• 1390644-34-4 isobutyric acid 2-((R)-3-diisopropylammonium-1-phenyIpropyl)-4-(hydroxymethyl)phenyl ester (R)-acetoxy(phenyl)acetate 
• 156755-20-3 PNU 200577 l-mandelate salt 

Relevant articles and documents

Microwave accelerated the solvent-free synthesis of 4-aryl-3,4-dihydrocoumarin via the tandem reaction of cinnamic acids with phenols catalyzed by Amberlyst 15 resin

Amberlyst 15 resin supported the tandem reaction of cinnamic acids with phenols under solvent-free reaction condition has been introduced to afford 4-aryl-3,4-dihydrocoumarin (neoflavanone) derivatives. The efficiency of solid acidic sulfonic resin (A-15) has been illustrated in two reaction activation methods such as microwave irradiation and conventional heating. The important roles of Amberlyst 15 have been emphasized strongly through the high yields of 4-aryl-3,4-dihydrocoumarin in the shorter time under the assistance of microwave irradiation than of conventional heating, and its high recovery and reusability for six catalyst runs. The original catalyst as well as the recycled catalyst were characterized by XRD and FE-SEM to study the correlation of the surface of reused catalyst and its recyclability.

PROCESS FOR THE PREPARATION OF MUSCARINIC RECEPTOR ANTAGONIST

The present invention relates to novel and improved processes for the preparation of (r)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenylisobutyrate represented by the following structural formula-1 and its pharmaceutically acceptable salts thereof.

Process for the Preparation of Fesoterodine

Disclosed herein is an improved, commercially viable and industrially advantageous process for the preparation of Fesoterodine or a pharmaceutically acceptable salt thereof in high yield and purity. Disclosed also herein is an improved and industrially advantageous optical resolution method of racemic (±)-N,N-Diisopropyl-3-(2-benzyloxy-5-bromophenyl)-3-phenylpropylamine and use thereof for the preparation of Fesoterodine.