7128-82-7

Basic information

• Product Name: 1,5-PENTANEETHONIUM DIBROMIDE
• Synonyms: 1,5-Pentanediaminium, N,N,N,N',N',N'-hexaethyl-, dibromide;1,5-pentanediaminium,N,N,N,N’,N’,N’-hexaethyl-,dibromide;Ammonium, pentamethylenebis(triethyl-, dibromide;N,N,N,N’,N’,N’-hexaethyl-1,5-pentanediaminiumdibromide;pentamethylenebis(triethyl-ammoniudibromide;pentamethylenebis(triethylammoniumbromide);pentamethylenebis[triethylammoniumbromide];1,5-PENTANEETHONIUM DIBROMIDE
• CAS NO: 7128-82-7
• Molecular Formula: 2Br*C₁₇H₄₀N₂
• Molecular Weight: 432.32
• Mol File: 7128-82-7.mol

Chemical Properties

• Melting Point: 276-278 °C (decomp)
• Appearance: /
• CAS DataBase Reference: 1,5-PENTANEETHONIUM DIBROMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,5-PENTANEETHONIUM DIBROMIDE(7128-82-7)
• EPA Substance Registry System: 1,5-PENTANEETHONIUM DIBROMIDE(7128-82-7)

Safety Data

• Hazardous Substances Data: 7128-82-7(Hazardous Substances Data)

Usage

Uses

Used in Zeolite Research:
1,5-Pentaneethonium Dibromide is used as a guest molecule for studying the synthesis and cavity/channel interactions of zeolites. Its application in this field aids in understanding the properties and behavior of zeolites, which are important materials in various industrial applications, such as catalysis and gas separation.

Synthetic route

1,5-dibromo-pentane (111-24-0) + triethylamine (121-44-8) → N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7)

Conditions	Yield
In acetone for 24h; Reflux;	90%
In neat (no solvent) at 110℃; for 24h; Autoclave;	64%
With ethanol
In methanol at 65℃; for 72h;

(5-bromopentyl)triethylammonium bromide (104304-09-8) + triethylamine (121-44-8) → N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7)

Conditions	Yield
In propan-1-ol Heating;	72%

1,5-dibromo-pentane (111-24-0) + Wang resin-OC(O)CH2N=CPh2 → N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7)

Conditions	Yield
Multi-step reaction with 2 steps 1: 21 percent / hexane / 10 h / Heating 2: 72 percent / propan-1-ol / Heating View Scheme

triethylamine (121-44-8) + DL-methionine nitrile → N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7)

Conditions	Yield
Multi-step reaction with 2 steps 1: 21 percent / hexane / 10 h / Heating 2: 72 percent / propan-1-ol / Heating View Scheme

1,5-dibromo-pentane (111-24-0) + ethanol (64-17-5) → N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7)

Conditions	Yield
With triethylamine Heating / reflux;

aluminum(III) nitrate nonahydrate + N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7) + sodium hydroxide (1310-73-2) → P1 zeolite

Conditions	Yield
With silica gel In water colloidal silica and Et3N(CH2)5NEt3Br2 added to aq. soln. of Al(NO3)3*9H2O and NaOH; stirred (room temp., 1 day); heated (160°C, 8 days,autoclave, rotation 60 rpm); filtered off; washed repeatedly (water); dried overnight (room temp.); elem. anal.; thermal anal.;

aluminum(III) nitrate nonahydrate + N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7) + potassium hydroxide → SUZ-4 zeolite

Conditions	Yield
With silica gel In water colloidal silica and Et3N(CH2)5NEt3Br2 added to aq. soln. of Al(NO3)3*9H2O and KOH; stirred (room temp., 1 day); heated (160°C, 8 days, autoclave, rotation 60 rpm); filtered off; washed repeatedly (water); dried overnight (room temp.); elem. anal.; thermal anal.;

N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7) → C17H40N2(2+)*2HO(1-)

Conditions	Yield
With anion exchange resin DIAION

N1,N1,N1,N5,N5,N5-hexaethylpentane-1,5-diamonium dibromide (7128-82-7) → C17H40N2(2+)*2F6P(1-)

Conditions	Yield
With ammonium hexafluorophosphate In water for 4h;

Upstream product

• 104304-09-8 (5-bromopentyl)triethylammonium bromide 
• 121-44-8 triethylamine 
• 111-24-0 1,5-dibromo-pentane 
• 64-17-5 ethanol 

Relevant articles and documents

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