87937-62-0

Upstream product

• 87937-60-8 3-Chloro-4-methoxy-3-phenyl-5,6-tetramethylene-3,4-dihydro-2H-pyran-2-one 
• 2912-62-1 α-chlorophenylacetyl chloride 
• 108-94-1 cyclohexanone 
• 87937-54-0 α-Methoxymethylenecyclohexanone 
• 123476-44-8 3-(2-Hydroxy-1-cyclohexenyl)-2-phenylcyclopropen-1-on 

Downstream Products

• 955-10-2 3-phenylcumarin 

Relevant academic research and scientific papers

Synthesis and Properties of 3-Acylmethylene-2-(2-hydroxy-1-alkenyl)-1-phenylcyclopropenes, a New Class of Stabilized Triafulvenes

Triafulvenes of type 9 are obtained by reaction of dichloro(phenyl)cyclopropenylium cation 7 with two equivalents of silyl enol ethers 8.They are characterized by means of their spectroscopic data and by X-ray analysis of 9c as cyclic 7-hydroxy-2,4,6-hept

(4 + 2) Cycloaddition of Ketenes and β-Methoxy α,β-Unsaturated Ketones: 2-Pyranones

The cycloaddition of diphenyl- and various chloroketenes to β-methoxy α,β-unsaturated ketones afforded (4 + 2) cycloaddition products.The cycloadducts resulting from the chloroketenes were converted to 2-pyranones on treatment with zinc in moist acetic acid.The cycloaddition products from chloroketenes and β-(methoxymethylene)-α-tetralone were readily converted to substituted benzocoumarins.