Downstream synthetic route of 4521-30-6

4521-30-6 Benzo[b]thiophen-2-amine 12526004, abenzothiophene compound, is more and more widely used in various.

4521-30-6, Benzo[b]thiophen-2-amine is a benzothiophene compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Part B. 2-[4-(2-Aminoethyl)phenyl]-6-benzyloxybenzo[b]thiophen-3-yl 3-Methoxy-4-[(1-pyrrolidinyl)methyl]phenyl Ketone. STR649 4-(2-Aminoethyl)bromobenzene (1.7 g; 8.4 mmol) and 2.3 mL (2 eq) of ET3 N were combined with 3 mL of anhydrous DMF in a flame-dried, argon-filled flask. 1,2-Bis(chlorodimethyl-silyl)ethane was added in 3.0 mL of DMF. The mixture was stirred at room temperature for 2 h. The mixture was filtered through a sintered glass funnel, and concentrated under reduced pressure. The colorless oil subsequently crystallized. The protected bromobenzene derivative was converted to the corresponding Grignard reagent. Magnesium (33 mg; 1.35 mmol) was placed in a flask which was subsequently flame-dried and filled with argon. Anhydrous THF (3 mL) and the protected aminoarylbromide were added with a small crystal of I2. The mixture was heated under reflux for 3 h. The resulting reagent was used without purification. The above aminobenzothiophene (Part A) (4.10 g; 8.2 mmol) was dissolved in anhydrous THF in a flame-dried, argon-filled flask, and cooled in an ice-water bath. The Grignard reagent prepared above (1.5 eq) was added dropwise.

4521-30-6 Benzo[b]thiophen-2-amine 12526004, abenzothiophene compound, is more and more widely used in various.

Reference£º
Patent; Eli Lilly and Company; US6025382; (2000); A;,
Benzothiophene – Wikipedia
Benzothiophene | C8H6S – PubChem