[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

Base Information

Chemical Name:[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester
CAS No.:1262858-70-7
Molecular Formula:C₁₆H₂₁BrN₂O₃
Molecular Weight:369.258
Hs Code.:

Synonyms:[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

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Chemical Property of [5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

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Technology Process of [5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

There total 11 articles about [5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester 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: 93.0%

: 24424-99-5
di-tert-butyl dicarbonate

: 1262858-69-4
rac-5-(3-bromophenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-ylamine

: 1262858-70-7
[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

Guidance literature:: With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 22 ℃; for 17h; Inert atmosphere;
DOI:10.1021/acs.jmedchem.0c02143

Reference yield:

: 24424-99-5
di-tert-butyl dicarbonate

: 5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-ylamine monoformate

: 1262858-70-7
[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

Guidance literature:: With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20 ℃; for 17h;

Reference yield:

: 1183013-69-5
(RS)-2-amino-2-(3-bromo-phenyl)-propan-1-ol

: 1262858-70-7
[5-(3-bromo-phenyl)-5-methyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: triethylamine / acetonitrile / -2 - 20 °C

2: potassium tert-butylate / tert-Amyl alcohol / 1 h / 20 - 30 °C

3: dichloromethane / 17 h / 20 °C / Inert atmosphere

4: ammonium chloride / methanol / 100 °C / Sealed tube

5: N-ethyl-N,N-diisopropylamine / dichloromethane; N,N-dimethyl-formamide / 20 °C

With potassium tert-butylate; ammonium chloride; triethylamine; N-ethyl-N,N-diisopropylamine; In methanol; tert-Amyl alcohol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;