The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular.31970-04-4, name is Benzyl 2,5-dihydro-1H-pyrrole-1-carboxylate. A new synthetic method of this compound is introduced below., 31970-04-4
The title compound of Step 1 (3.0 g, 15 mmol) was dissolved in a mixture of acetonitrile (100 mL) and water (70 mL) containing ethylenediamine tetraacetate, disodium salt dihydrate (11 mg, 0.03 mmol). The solution was cooled to 0 C. and 1,1,1-trifluoroacetone (14.5 mL, 160 mmol) was added over 10 min. Potassium peroxymonosulfate (45 g, 74 mmol) was added portionwise over 40 min while maintaining the pH at 7 by adding sodium bicarbonate. The mixture was stirred at 0 C. for 1.5 hr then poured into water and extracted with dichloromethane. The combined extracts were dried over magnesium sulfate and concentrated to a colorless oil (3.45 g, 100%)., 31970-04-4
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Reference£º
Patent; Pfizer Inc; US2005/256310; (2005); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem