Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 6941-75-9, name is 5-Bromoisoindoline-1,3-dione, A new synthetic method of this compound is introduced below., Formula: C8H4BrNO2
Example 8 Heck reaction of 4-Bromophthalic imide with 1 ,7-Octadien (Heck condition) 1 g 4-Bromophthalic imide (6.167 mmol), a two-fold excess 1 ,7-Octadien (12.33 mmol) and the catalysator system were solved in 50 ml DMF. The catalysator system consisted of Palladiumacetate (5 mol-% to Imide: 0.31 mmol), 0.92 mmol Triphenylphosphane and 6.17 mmol Triethylamin. The solution has been heated for 24 h at 150 C (Control of reaction progress via thin layer chromatography with CH2CI2: n-Hexane [5:1]). From the resulting dark brown solution the solvent was removed by reduced pressure. The obtained viscous brown raw product was solved with 80 ml CH2CI2 and washed three times (3 x 200 ml) with a saturated H20/NaCI solution. After that the CH2CI2-phase was dried with MgS04 and the solvent was removed by reduced pressure. The viscous brown product (1 ) was dried under constant vacuum. Yield : quant. IR : v 1772, 1717 (s, Imide) cm 1 MS / ESI : 401.14972 m/z (M+H+)
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; DENTSPLY DETREY GMBH; KLEE, Joachim, E.; RETZMANN, Nils; RITTER, Helmut; SZILLAT, Florian; WO2014/114446; (2014); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem