Category: 62257-15-2

Application of 62257-15-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 62257-15-2 name is 2-Fluoro-5-methoxyaniline, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

A. 2-Azido-1-fluoro-4-methoxybenzene, 5a To a mixture of 2-fluoro-5-methoxyaniline (5.0 g, 35 mmol), sulfuric acid (7.5 mL), trifluoroacetic acid (37.5 mL) and water (45 mL) was added NaNO2 (3.7 g, 53 mmol) portionwise at 0 qC. The mixture was stirred for 30 min at 0 qC and NaN3 (4.6 g, 71 mmol) was added. The resulting solution was stirred overnight at RT and extracted with EtOAc (2 x 200 mL). The combined organic layers were dried over Na2SO4 and concentrated. The residue obtained was purified by column chromatography on silica gel (EtOAc/petroleum ether, 1:100) to give compound 5a as a light yellow oil. 1H-NMR (300 MHz, DMSO-d6) (ppm): 7.23 (dd, J1 = 9.0 Hz, J2 = 10.8 Hz, 1H), 6.72 – 6.80 (m, 2H), 3.76 (s, 3H). Mass Spectrum (GCMS, EI): Calcd. for C7H6FN3O: 167.0 (M); found: 167.2.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Fluoro-5-methoxyaniline, and friends who are interested can also refer to it.

Reference:
Patent; JANSSEN PHARMACEUTICA NV; HUANG, Hui; MEEGALLA, Sanath; PLAYER, Mark R.; (196 pag.)WO2017/27310; (2017); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

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. 62257-15-2, name is 2-Fluoro-5-methoxyaniline, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H8FNO

2-Fluoronicotinic acid methyl ester (0.3 g, 1.934 mmol) and 2-fluoro-5-methoxyaniline(0.278 ml, 2.32 1 mmol) were heated by microwave irradiation at 130 C for 20 mm. SomeDCM was added and the mixture was washed twice with 1120. Organic phase was dried overNa2SO4, filtered and evaporated. Crude product was purified by trituration with diethylether. 0.324 g of the title compound was obtained.?H NMR (400 MHz, CDCJ3) oe ppm 3.82 (s, 3 H) 3.95 (s, 3 H) 6.49 (dt, 1 H) 6.78 (dd, I H) 7.03 (dd, I H) 8.27 (dd, I H) 8.33 (dd, I H) 8.42 (dd, 1 H) 10.42 (hr. s., I 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; ORION CORPORATION; ARVELA, Riina; HOLM, Patrik; VESALAINEN, Anniina; WO2015/144976; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

62257-15-2,Some common heterocyclic compound, 62257-15-2, name is 2-Fluoro-5-methoxyaniline, molecular formula is C7H8FNO, 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.

Example 3: 2-(2-Fluoro-5-methoxv-phenvlamiotano-4-(2-methanesulfonvl-phenylamiotano)- py?miotadiotane-5-carboxyliotac acid amide (3); Step a: 2-(2-Fluoro-5-methoxy-phenylamiotano)-6-oxo-1 ,6-diotahydro-rhoy?miotadiotane-5-carboxyliotac acid ethyl ester (3a); A mixture of 2-methylsulfonyl-6-oxo-1 ,6-diotahydro-py?miotadiotane-5-carboxyliotac acid ethyl ester (CA Reg No 53554-29-3, 108 mg) and 2-fluoro-5-methoxy-aniotaliotane (CA Reg No 62257-15-2, 90 mg) is heated without solvent in an oil bath of 160 0C After 2h the reaction is cooled, and the residue is crystallized from methanol affording 3a (UPLC method C, tret 1 93 mm, MS 308/ES+)

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2-Fluoro-5-methoxyaniline, its application will become more common.

Reference:
Patent; NOVARTIS AG; NOVARTIS PHARMA GMBH; WO2008/9458; (2008); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem