4-HYDROXY ACETOPHENONE also a choleretic drugs for cholecystitis

　　Complexometric titration is used as an indicator of iron, precious metals and rare metals extraction agent, a catalyst for polymerization of cyclopentadiene. Between inter-h 4-HYDROXY ACETOPHENONE ammonia based acetophenone by diazotization, hydrolysis. For synthetic drugs such as phenylephrine. H4-HYDROXY ACETOPHENONE toxic, irritating! Rearrangement by phenylacetate or Aminoacetophenone by diazotization, hydrolysis; for the preparation of perfumes, dyes, pesticides and so on.

　　This is because when the amount of glacial acetic acid, 4-HYDROXY ACETOPHENONE amount is more than Q (moles) twice, 4-HYDROXY ACETOPHENONE resulting in a large number of by-products, while also appeared two acylation, leading to decreased yield of the product. Therefore, 4-HYDROXY ACETOPHENONE the amount of acetic acid in this experiment should be controlled at 12g.

　　4-HYDROXY ACETOPHENONE use Acetica process which is based on a heterogeneous rhodium catalyst , wherein the active Rh complex is chemically fixed to the polyvinyl pyridine resin. Acetica technology in the last century, 90 years ***** hair, 1999 Crystal chemical plant in China Guiyang pilot plant is verified , confirmed the integrated process performance. 2002 commercial license with Chinese enterprises signed contracts plant is currently under construction industrial unit .

　　Basic purposes: as an organic synthesis intermediate for the production of spices, 4-HYDROXY ACETOPHENONE also a choleretic drugs for cholecystitis and acute and chronic hepatitis jaundice adjuvant therapy. Levin is mainly used for the synthesis of 4-HYDROXY ACETOPHENONE is a synthetic selective B l blockers a atenolol (# 1) is an important intermediate. Choleretic 4-HYDROXY ACETOPHENONE drugs and for the manufacture of other organic synthesis of raw materials.