93826-91-6

Upstream product

• 615-29-2 4-methyl-3-hexanol 
• 66225-32-9 2,3-Dihydroxy-3-ethyl-pentan 
• 17042-16-9 4-methyl-3-hexanone 
• 93827-11-3 Methanesulfonic acid 2-ethyl-2-hydroxy-1-methyl-butyl ester 
• 615-29-2 (R)-4-Methyl-hexan-3-ol 
• 77858-08-3 (+)-(S)-4-methyl-hexane-3-one 
• 54783-78-7 (2S)-3-ethyl-2,3-pentanediol 
• 65437-07-2 (R)-3-Ethyl-pentane-2,3-diol 
• 93827-11-3 (S)-3-ethyl-2-methanesulfonyloxy-3-pentanol 
• 93827-11-3 Methanesulfonic acid (R)-2-ethyl-2-hydroxy-1-methyl-butyl ester 
• 615-29-2 (3Ξ,4S)-4-methyl-hexan-3-ol 
• 20086-34-4 (S)-(+)-4-methyl-3-hexanone 

Relevant academic research and scientific papers

DIRECT ESTERIFICATION OF α-METHOXY-α-(TRIFLUOROMETHYL)PHENYLACETIC ACID

Esters of α-methoxy-α-(trifluoromethyl)phenylacetic acid (Mosher acid, MTPA) were prepared in good yields from alcohols and the free acid Ia using 2-chloro-1-methylpyridinium iodide (II) as condensing agent.

COMPLETELY STEREOSPECIFIC 1,2-MIGRATION OF ALKYL GROUPS IN Et2AlCl PROMOTED PINACOL-TYPE REARRANGEMENT

Completely stereospecific 1,2-migration of alkyl groups was achieved in Et2AlCl-promoted pinacol-type rearrangement of chiral β-mesyloxy alcohols to give optically pure α-alkyl ketones including both enantiomers of 4-methyl-3-hexanone, an alarm pheromone of ant.