94558-99-3

Upstream product

• 865-47-4 potassium tert-butylate 
• 94559-06-5 1-Chlor-c-2-methyl-c-3-phenyl-t-2-(tetrahydro-2-pyranyloxymethyl)-r-1-cyclopropancarbonsaeure-methylester 
• 77301-64-5 2,2-Dichlor-1-methyl-t-3-phenyl-r-1-cyclopropanmethanol-tetrahydro-2-pyranylether 

Downstream Products

• 94559-02-1 3-(Hydroxymethyl)-3-methyl-2-phenyl-1-cyclopropen-1-carbonsaeure-tert-butylester 

Relevant academic research and scientific papers

Reaction of 2,2-Dichloro-1-methyl-3-phenylcyclopropanemethanol Tetrahydropyranyl Ether with Butyllithium / CO2 and Subsequent Reactions of the Products

While the title reaction starting from 2a followed by acidic work-up affords only the α-chlorolactone 1 with low yield, alcaline work-up and addition of dimethyl sulfate lead to a mixture of the esters 2b and c and the chlorocyclopropene 3a.From 2b/c with