1-Bromobutane Properties

1-Bromobutane Usage

It can be used as rare element extractant, alkylation agent and organic synthesis raw material, and can also be used as raw material of medicine, dye and perfume.

1-Bromobutane Packaging and Shipping

Packaging:25kg/ bag, customer’s request

Shipping:It can be according to the customer’s request

1-Bromobutane Storage

Store at RT.

1-Bromobutane application

1. Used to prepare butyl-terminated allyl polyoxyethylene ether

Butyl-terminated allyl polyoxyethylene ether has oil solubility, high temperature resistance, acid and alkali resistance, foam suppression, etc. compared with allyl polyoxyethylene ethers containing hydroxyl groups because the hydroxyl group in the molecular chain is substituted by butyl. Ability has been improved, with unique functions. Butyl-terminated allyl polyoxyethylene ether can be used in the oil for high-speed spinning of chemical fibers; it can also be used as an additive in high temperature resistant lubricating oil or heat transfer oil; it can also be used in strong alkaline detergent formulations. in;
In addition, it is an excellent cell opener and silicone foam stabilizer in the polyurethane industry. A method for preparing a butyl-terminated allyl polyoxyethylene ether is provided, and by-product water is removed during the reaction process to promote the full reaction of polyether and alkali to form alkoxide. The alkoxide and bromobutane are fully reacted in the autoclave to prepare the corresponding end-capped polyether, which has fast reaction speed, no pollution and higher end-capping efficiency. In order to achieve the above objective, the present invention adopts the following technical scheme, a preparation method of butyl-terminated allyl polyoxyethylene ether, using commercially available allyl polyoxyethylene ether and bromobutane as raw materials, in alkali As an alkoxide reagent, it reacts with allyl polyoxyethylene ether to produce allyl polyoxyethylene alkoxide, and then reacts with bromobutane as a blocking agent to prepare butyl-terminated allyl polyoxyethylene ether The alkoxide reagent adopts any one of solid potassium hydroxide or sodium hydroxide or a mixture thereof; and the molar ratio of allyl polyoxyethylene ether to the alkoxide reagent is 1:1 to 1.5.
In the present invention, bromobutane is reasonably selected as the blocking agent, and the utilization rate is high.

2. Used in the industrial production of tetrabutylphosphonium bromide

Tetrabutylphosphonium bromide belongs to the onium salt phase transfer catalyst. The purpose of the invention is to provide a new method for the industrial production of tetrabutylphosphonium bromide. A method for producing tetrabutylphosphonium bromide is provided, which uses bromobutane, magnesium bar, phosphorus trichloride and tetrahydrofuran (solvent) as starting materials, first produces tributylphosphine, and then uses tributylphosphine and Bromobutane, acetonitrile (solvent) synthesis to prepare tetrabutyl phosphonium bromide. Compared with the prior art, this method has the advantages of easy access to raw materials, simple process, simple operation, low pollution emission, high reaction yield, good product quality (content ≥99%), low production cost and the like.