8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

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Chemical Name:8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid
CAS No.:1355361-72-6
Molecular Formula:C₂₄H₂₁NO₄S
Molecular Weight:419.501
Hs Code.:

Synonyms:8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

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Chemical Property of 8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

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Technology Process of 8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

There total 7 articles about 8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 78.0%

: 1355361-91-9
ethyl 8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylate

: 1355361-72-6
8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

Guidance literature:: ethyl 8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylate; With sodium hydroxide; In methanol; water; at 75 ℃; for 2h;

With hydrogenchloride; In water; pH=Ca. 3; Cooling with ice;
DOI:10.1016/j.bmc.2011.11.061

Reference yield: 73.0%

: 1555-80-2
phenylacetic anhydride

: 1355361-83-9
ethyl [5-(cyclohexyloxy)-1,3-benzothiazol-2-yl]acetate

: 4637-24-5
N,N-dimethyl-formamide dimethyl acetal

: 1355361-72-6
8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

Guidance literature:: phenylacetic anhydride; ethyl [5-(cyclohexyloxy)-1,3-benzothiazol-2-yl]acetate; N,N-dimethyl-formamide dimethyl acetal; at 110 ℃; for 8h; Green chemistry;

With sodium hydroxide; In ethanol; water; for 2h; Reflux; Green chemistry;
DOI:10.1016/j.ejmech.2020.112992

Reference yield:

: 1355361-81-7
5-(cyclohexyloxy)-2-methyl-1,3-benzothiazole

: 1355361-72-6
8-(cyclohexyloxy)-1-oxo-2-phenyl-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylic acid

Guidance literature:: Multi-step reaction with 5 steps

1.1: water; sodium hydroxide / ethylene glycol / Inert atmosphere; Reflux

2.1: 15 h / 120 °C / Inert atmosphere

3.1: trichlorophosphate

3.2: 2 h / 90 °C

4.1: 5 h / 100 °C / Neat (no solvent)

5.1: sodium hydroxide / methanol; water / 2 h / 75 °C

5.2: pH Ca_. 3 / Cooling with ice

With water; sodium hydroxide; trichlorophosphate; In methanol; water; ethylene glycol;
DOI:10.1016/j.bmc.2011.11.061