triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide

Base Information

• Chemical Name: triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide
• CAS No.: 1259475-46-1
• Molecular Formula: Br*C₂₈H₂₆N₂P
• Molecular Weight: 501.406

Synonyms:triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide

Chemical Property of triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide

Chemical Property:

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MSDS Files:

SDS file from LookChem

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Technology Process of triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide

There total 3 articles about triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide 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: 53.0%

triphenyl[4-(1-phenylhydrazinyl)but-2-en-1-yl]phosphonium bromide (1606160-62-6) → triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide (1259475-46-1) + Triphenylphosphine oxide (791-28-6)

Guidance literature:

With sodium hydroxide; In water; benzene; at 20 ℃; for 3h;

DOI:10.1134/S1070363214030141

Reference yield:

(4-bromobut-2-en-1-yl)triphenylphosphonium bromide (53142-03-3) + phenylhydrazine (100-63-0) → triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide (1259475-46-1) + Triphenylphosphine oxide (791-28-6)

Guidance literature:

Multi-step reaction with 2 steps

1: acetic acid / water / 4 h / 20 °C

2: sodium hydroxide / water; benzene / 3 h / 20 °C

With acetic acid; sodium hydroxide; In water; benzene;

DOI:10.1134/S1070363214030141

Reference yield:

Br(1-)*C22H19BrP(1+) + phenylhydrazine (100-63-0) → Br(1-)*C28H24N2P(1+) (1259475-48-3) + triphenyl[(1-phenyl-4,5-dihydro-1-pyrazol-3-yl)methyl]phosphonium bromide (1259475-46-1)

Guidance literature:

In chloroform; at 0 - 5 ℃;

DOI:10.1134/S107036321009032X

upstream raw materials:

phenylhydrazine

(4-bromobut-2-en-1-yl)triphenylphosphonium bromide

triphenyl[4-(1-phenylhydrazinyl)but-2-en-1-yl]phosphonium bromide

Downstream raw materials:

3-methyl-1-phenyl-1H-pyrazole

3-methyl-1-phenyl-4,5-dihydropyrazole

Triphenylphosphine oxide

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