5,7-DICHLOROTHIENO[3,2-B]PYRIDINE
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![5,7-DICHLOROTHIENO[3,2-B]PYRIDINE structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220812/f1aa467ed3e84d57a6db23fd33231297.png "5,7-DICHLOROTHIENO[3,2-B]PYRIDINE")
5,7-DICHLOROTHIENO[3,2-B]PYRIDINE
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CAS No:
74695-44-6
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Formula:
C7H3Cl2NS
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Chemical Name:
5,7-DICHLOROTHIENO[3,2-B]PYRIDINE
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Synonyms:
5,7-Dichlorothieno[3,2-b]pyridine;Thieno[3,2-b]pyridine, 5,7-dichloro-;SCHEMBL1497379;CTK8B6717;DTXSID80504910;BCP18390;KS-000008BV;ANW-54132;ZINC44831943;AKOS015999178
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CAS No:
Characteristics
41.1
3.5
1.6±0.1 g/cm3
72-74 °C(Solv: ethanol (64-17-5); water (7732-18-5))
128.0±25.9 °C
1.701
Safety Information
|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
5,7-DICHLOROTHIENO[3,2-B]PYRIDINE Use and Manufacturing
(1) A mixture of Malonic acid (2.66 g, 25.5 rnmol) and thiophen-3 -amine (2.53 g5 25.5 mmol) were suspended in phosphorous oxychloride (50 mL). The solution was refluxed overnight under nitrogen. The solution was cooled, quenched with ice water, neutralized with solid NaHCO3, extracted with CH2Cl25 dried, and concentrated. Flash chromatography (10% EtOAc/hexanes) gave the title compound as a yellow solid.
5,7-DICHLOROTHIENO[3,2-B]PYRIDINE
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