Web(I)‐catalyzed three‐component reactions of phenyl diazoacetate with arylamine and imine, which provide a series of polysub‐ stituted 1,2‐diamine derivatives in moderate to good yields [22–25]. The reaction of methyl phenyldiazoacetate 1a with phe‐ nylamine 2a and 4‐nitrophenyl‐N‐phenylmethanimine 3a was WebWhen p-methylanisole was treated with methyl 2-phenyldiazoacetate at 80°C, a product that largely favored a fused cyclopropane structure, 7-carbomethoxy-2-methoxy-5-methyl-7-phenylnorcaradiene, 12a, was obtained along with the benzylic C–H insertion product methyl 3-(p-methoxyphenyl)-2-phenylpropionate, 13a.
methyl phenyldiazoacetate - Wikidata
Web10. apr 2024 · Methyl phenyldiazoacetate, precursor to cyclopropanation agents, is prepared by treating methyl phenylacetate with p-acetamidobenzenesulfonyl azide in the presence of base. Methyl 2-phenylacetoacetate Preparation Products And Raw materials. Raw materials. Preparation Products. Web14. jan 2000 · Flash photolysis of methyl phenyldiazoacetate in aqueous solution produced phenylcarbomethoxycarbene, whose hydration generated a short-lived transient species that was identified as the enol isomer of methyl mandelate. charlestown rental equipment
Phenyl 2-diazoacetate C8H6N2O2 - PubChem
Web16. okt 2003 · By treating methyl phenyldiazoacetate with arylamine and imine in the presence of dirhodium acetate, the … [reaction: see text] A practical highly diastereoselective synthesis of 1,2-diamines through carbon-carbon bond formation involving an ammonium ylide intermediate is reported for the first time. Web6. mar 2024 · Diphenylmethane 1a was chosen as the substrate to investigate the benzylic C (sp 3 )–H bond transformation with diazo compounds. We first tested the reaction between 1a (0.4 mmol) and phenyldiazoacetate 2a (0.2 mmol) with 10 mol% FeCl 2 and DDQ (0.5 mmol) in 1,2-dichloroethane (DCE, 1.0 mL) at 90 °C for 24 h. Web9. máj 2024 · At the onset of this investigation, o-acetylenyl-substituted phenyldiazoacetate 1a was selected as the model substrate. In a preliminary experiment, 1a was treated with CuI catalyst in a mixture of CH 3 CN and H 2 O (v:v = 1:1) ().As expected, only the water insertion product 4a was obtained as the major product and in high yield (91%) (Table 1, entry 1). charlestown rentals