67958-02-5

Upstream product

• 81787-27-1 S-2-pyridyl 2,4,6-trimethylbenzothioate 
• 67992-95-4 2,4,6-trimethylbenzoyl radical 
• 105040-97-9 C₁₆H₂₆O₂Si 
• 1034-39-5 dibromotriphenylphosphorane 
• 480-63-7 mesitylenecarboxylic acid 

Downstream Products

• 1795-80-8 tert-butyl 2,4,6-trimethylbenzoate 
• 918971-09-2 2,4,6-Trimethyl-benzoic acid (E)-3-bromo-propenyl ester 

Relevant academic research and scientific papers

(2,4,6-Trimethylbenzoyl)diphenylphosphine oxide photochemistry. A direct time-resolved spectroscopic study of both radical fragments

The photochemistry of (2,4,6-trimethylbenzoyl)diphenylphosphine oxide (1) has been investigated using time-resolved infrared (TRIR) and time-resolved UV spectroscopy (laser flash photolysis (LFP)), in addition to conventional photochemical steady-state te

Activated Basic Alumina Promotes a Mild, Clean and High-Yield Racemization-Free Synthesis of t-Butyl Esters from Chiral Acid Bromides and t-Butyl Alcohol

Esterification of a variety of acid bromides having even steric bulkiness with t-BuOH/activated basic alumina gave the corresponding t-butyl esters in good to excellent yields.In the case of chiral acid bromides, no racemization has been ascertained for the first time.

Reaction of Hindered Trialkylsilyl Esters and Trialkylsilyl Ethers with Triphenylphosphine Dibromide: Preparation of Carboxylic Acid Bromides and Alkyl Bromides under MIld Neutral Conditions

A new route for a simultaneous deprotection-activation of hindered trialkylsilyl esters is described. tert-Butyldimethylsilyl, triisopropylsilyl, and tert-butyldiphenylsilyl carboxylates reacted with triphenylphosphine dibromide at room temperature in dichloromethane to give acid bromides in high yields.Reaction between hindered trialkylsilyl ethers and triphenylphosphine dibromide afforded alkyl bromides in excellent yields.The formation rate of acid bromides and alkyl bromides was increased when the reactions were carried out in the presence of a catalytic amount of ZnBr2.

Copper Ion Promoted Esterification of S-2-Pyridyl Thioates and 2-Pyridyl Esters. Efficient Methods for the Preparation of Hindered Esters

The esterification of the S-2-pyridyl thioates and 2-pyridyl esters with alcohols in acetonitrile is greatly facilitated by the addition of cupric bromide and copper ion is observed to catalyze the reaction.The ester formation is found to be sensitive to solvents, metal salts, and reaction temperatures.The esterification of S-2-pyridyl thioates is much more rapid than the esterification of 2-pyridyl esters under the reaction conditions employed.This method is exceedingly effective in the preparation of sterically hindered esters and has advantages over known methods in many respects such as high yields, the mildness of the reaction, and the rapidity of the reaction.