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
• Article Data: 8

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

1,5-Pentaneethonium Dibromide is a divalent quaternary amine that has been used as a guest molecule in the study of an array of zeolites, in areas such as their synthesis and cavity/channel interactions.

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

The use of a diammonium salt in the synthesis of organic carbonates from epoxides and CO2: promoting effect of support

Onium salt, N1, N1, N1, N5, N5, N5-hexaethylpentane-1,5-diammonium dibromide, was used as a catalyst for the addition of CO2 to epoxides. An influence of insoluble supports on the rate of the process as well as possibility of recycling of the catalytic system are described. In addition, the effects of temperature and CO2 pressure on the yields of products are discussed.

Dinuclear quaternary ammonium salt ionic liquid compound as well as preparation method and application thereof

The present invention discloses a double-core quaternary ammonium salt ionic liquid compound having two quaternary ammonium root cations and selected from the group consisting of formate. The acetate, propionate, butyrate, acetate radical anion. The invention further discloses a preparation method and of the ionic liquid, H and thereof. 2 The application of S absorption removal. The ionic liquid is novel in structure, convenient to synthesize and capable of effectively avoiding the defects of large pollution, strong corrosion, high energy consumption and the like of a traditional organic amine process. In addition, the ionic liquid H according to the present invention is used with respect to a normal ionic liquid. 2 S Absorbs capacity higher, and the effect is showing.

Designing the synthesis of catalytically active Ti-β by using various new templates in the presence of fluoride anion

Crystallization of large-pore Ti-β by using a variety of diquaternary ammonium derivatives of dibromoalkane and amines such as triethylamine, 1,4-diazabicyclo[2,2,2]octane (DABCO), and quinuclidine as structure-directing agents (SDA) is described. The size of hydrophobic bridging alkyl-chain length of the template [R3N+-(CH2)x-N +R3](OH-)2 directs the final crystalline product: Ti-β, Ti-ZSM-12, Ti-nonasil or Ti-ZSM-5, as x gradually changes from 6 to 1, in the fluoride medium under hydrothermal conditions. A dense phase such as Ti-nonasil (clathrasil type) is crystallized as the size of hydrophobic bridging alkyl-chain length decreases. The use of F- anions as a mineralizer and Ti4+ as a heteroatom in the synthesis gel also influences the selectivity of final crystalline product. The phase purity and incorporation of Ti4+ into the lattice of β (BEA) and ZSM-12 frameworks are confirmed using XRD, UV-visible, FT-IR, 29Si NMR spectroscopes, elemental analysis (ICP), surface area measurements and catalytic test reactions. The morphology of Ti-β samples is dependent on the nature of the structure-directing agent as revealed by the scanning electron microscopic (SEM) observations. The catalytic activity in the epoxidation of 4-vinyl-1-cyclohexene is increased with the amount of tetrahedral Ti4+ atoms in the framework. The new templates can be effectively used for preparation of catalytically active Ti-β with the minimum number of framework defect sites.