Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 552330-86-6, name is 5-Bromoisoindolin-1-one, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 5-Bromoisoindolin-1-one
Step 1: Methyl 3-((1-oxoisoindolin-5-yl)thio)propanoate (0451) (0452) A solution of 5-bromoisoindolin-1-one (10 g, 47.16 mmol) in dioxane (450 mL) was degassed before Xantphos (2.73 g, 4.72 mmol), DIPEA (9.88 mL, 56.59 mmol), Pd2(dba)3 (2.159 g, 2.36 mmol) and methyl 3-mercaptopropanoate (32.6 mL, 330.12 mmol) was added. The reaction was heated to 80 C. for 1 h. The reaction was concentrated in vacuo. Approximately half of the material was purified by flash chromatography eluting with 0-5% methanol in EtOAc to afford 4.69 g of product. Only half the material was purified this way because the crude material solidified part way through loading onto the column. The solidified material was triturated with methanol and 4.48 g of product was collected by filtration as a colorless solid. The mother liquor was concentrated in vacuo and purified by flash chromatography eluting with 0-5% methanol in EtOAc to afford 1.1 g product. This was combined with the material from the first column to give 10.27 g (86%) of the title compound. (0453) LC/MS: m/z=252 [M+H]+. 1H NMR (500 MHz, DMSO) delta 2.69 (t, 2H), 3.26 (t, 2H), 3.60 (s, 3H), 4.34 (s, 2H), 7.38 (d, 1H), 7.52 (s, 1H), 7.58 (d, 1H), 8.48 (s, 1H).
According to the analysis of related databases, 552330-86-6, the application of this compound in the production field has become more and more popular.
Reference:
Patent; AstraZeneca AB; NARJES, Frank; OLSSON, Roine Ingemar; VON BERG, Stefan; LEVER, Sarah; (112 pag.)US2017/166527; (2017); A1;,
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