ChemicalBook CAS DataBase List 4-bromonaphthalen-2-ol

4-bromonaphthalen-2-ol synthesis

8synthesis methods

Product Name:4-bromonaphthalen-2-ol
CAS Number:5498-31-7
Molecular formula:C10H7BrO
Molecular Weight:223.07

4-Bromonaphthalen-2-ol is synthesized from naphthalen-1-amine in three steps. Step A: Naphthalen-1-amine reacts with Br2 in AcOH to give 2,4-dibromonaphthalen-1-amine. Step B: This product is diazotized with NaNO2 in AcOH/propionic acid at low temperature

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Yield:-

Steps:

Multi-step reaction with 3 steps
1: bromine; acetic acid / 1 h / 70 °C
2: acetic acid; propionic acid; sodium nitrite / 1 h / 5 - 8 °C
3: sodium tetrahydroborate / ethanol / 4 h / 13 - 18 °C

References:

MIRATI THERAPEUTICS, INC.;ARRAY BIOPHARMA, INC.;FISCHER, John, P.;FELL, Jay, Bradford;BLAKE, James, F.;HINKLIN, Ronald, Jay;MEJIA, Macedonio, J.;HICKEN, Erik, James;CHICARELLI, Mark, Joseph;GAUDINO, John, J.;VIGERS, Guy, P.A.;BURGESS, Laurence, E.;MARX, Matthew, Arnold;CHRISTENSEN, James, Gail;LEE, Matthew, Randolf;SAVECHENKOV, Pavel;ZECCA, Henry, J. WO2017/201161, 2017, A1

FullText

1-Naphthalenediazonium, 4-bromo-2-hydroxy-

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References

20191-76-8 Synthesis

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References

1078-19-9 Synthesis

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References

1(2H)-Naphthalenone, 3,4-dihydro-6-methoxy-, O-methyloxime

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References

4-bromonaphthalen-2-ol Related Search:

6-AMINO-1-NAPHTHOL 2,7-Dihydroxynaphthalene

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4-bromonaphthalen-2-ol synthesis

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