One of the major reasons is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level. 766-36-9, name is 3-Ethyl-4-methyl-2,5-dihydro-1H-pyrrol-2-one, introduce a new downstream synthesis route., 766-36-9
EXAMPLE 7 trans-6-Cyano-3,4-dihydro-2,2-dimethyl-4-(3-ethyl-4-methyl-2-oxo-3-pyrrolin-1-yl) -2H-benzo[b]pyran-3-ol 2.4 g (0.08 mol) of 80percent NaH are introduced into a solution of 14.4 g (0.072 mol) of trans-3-bromo-6-cyano-3,4-dihydro-2,2-dimethyl-2H-benzo[b]pyran -4-ol in 200 ml of DMSO. The mixture is stirred for one hour at 20¡ã C., and 3.6 g (0.12 mol) of 80percent NaH and 15 g (0.12 mol) of 3-ethyl-4-methyl-2-oxo-3-pyrroline are introduced. The reaction mixture is stirred at 40¡ã C. for three hours and then introduced into ice water, and the product is filtered off with suction, dried and chromatographed on a silica gel column using methylene chloride/methanol (95: 5). The product obtained in this way crystallizes from a little ethanol. Crystals of melting point 207¡ã-208¡ã C. C19 H22 N2 O4 (326,41) calc. C 69.92;H 6.80;N 8.58; found C 70.0;H 6.7;N 8.6;, 766-36-9
This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of 766-36-9. We look forward to the emergence of more reaction modes in the future.
Reference£º
Patent; Hoechst Aktiengesellschaft; US5043344; (1991); A;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem