Continuously updated synthesis method about 19727-83-4

Reference of 19727-83-4, A common heterocyclic compound, 19727-83-4, name is 6-Nitroindoline, molecular formula is C8H8N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Reference of 19727-83-4, A common heterocyclic compound, 19727-83-4, name is 6-Nitroindoline, molecular formula is C8H8N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

6-Aminoindoline A solution of 6-nitroindoline (1 g, 6.1 mmol) in 50 mL of ethyl acetate was hydrogenated under an atmosphere of hydrogen with Pd-C 10% (100 mg) at rt for 3 h. Filtration over celite afforded 1.0 g (98%) of 6-aminoindoline. Data for 6-aminoindoline: 1 H NMR (400 MHz, CDCl3) 7.40 (d, J=7.4, 1H), 6.05 (d, J=2.0, 1H), 6.03 (d, J=7.5, 1H), 3.67 (bs, 1H), 3.49 (t, J=8.1, 2H), 3.48 (bs, 2H), 2.90 (t, J=8.2, 2H).

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; Ligand Pharmaceuticals Incorporated; US5688808; (1997); A;; ; Patent; Ligand Pharmaceuticals Incorporated; US5693646; (1997); A;; ; Patent; Ligand Pharmaceuticals Incorporated; US5693647; (1997); A;; ; Patent; Ligand Pharmaceuticals Incorporated; US5696127; (1997); A;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem