tert-부틸리튬

tert-부틸리튬 속성

tert-부틸리튬 C화학적 특성, 용도, 생산

개요

tert-Butyllithium solution (tert-BuLi) is an organolithium compound, used as a strong base in organic chemistry. It facilitates lithium-halogen exchange reaction and also can be employed in the deprotonation of C-H compounds and amines. it has applications in organic synthesis since it is a strong base, capable of deprotonating many carbon molecules, including benzene. tert-Butyllithium is available commercially as hydrocarbon solutions; it is not usually prepared in the laboratory. Its synthesis was first reported by R. B. Woodward in 1941.

화학적 성질

tert-Butyllithium is a colorless crystalline solid or colourless to pale yellow solution. It is more reactive than n- or sec-butyllithium and has similar properties. However, it is thermally stable. Dixon and co-workers have heated tert-Butyllithium to 100°C for 20 hr with little decomposition.

용도

• There are no commercial uses of t-butyllithium, but it is used as a polymerization initiator and as a metalating agent in the laboratory.
• Alkylating and metalating agent. Reagent for the introduction of the tert-butyl group.
• tert-Butyllithium (t-BuLi) is the most reactive of the commercially available organolithium reagents. It is supplied as a standard solution in hydrocarbon solvents, usually in a bottle sealed with a septum.

주요 응용

tert-Butyllithium solution can be used as a strong base in the synthesis of:
Alkyllithium derivatives form alkyl iodides and diiodoalkanes by halogen-lithium exchange reaction.
Inorganic polymer [(LiMo3Se3)n] from [(InMo3Se3)n] by reductive intercalation method.
Adducts of cinnamic acid (1,3- and 1,4-adducts) by reacting with C-C double of cinnamic acid.

제조 방법

tert-Butyllithium is not sold in large quantities. The industrial and laboratory preparations are the same: the reaction of t-butyl chloride with lithium metal in a hydrocarbon solvent. However, tert-Butyllithium is much more difficult to produce than the other isomeric butyllithium compounds and some special precautions must be taken to obtain good yields. Principally, the lithium metal must be finely divided and must contain several percent sodium. It has also been found that t-butyl alcohol in the butyl chloride is beneficial. The solvent of choice is pentane. Vigorous reflux is necessary for good yield since it apparently helps to remove lithium chloride from the surface of the metal, and pentane refluxes at about the optimum temperature. If hexane is used at the same temperature, a significantly lower yield is obtained.

tert-부틸리튬 준비 용품 및 원자재

원자재

준비 용품

tert-부틸리튬 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21639	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29886	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49374	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58
SIMAGCHEM CORP	+86-13806087780	sale@simagchem.com	China	17365	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34553	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	7433	58
ANHUI WITOP BIOTECH CO., LTD	+8615255079626	eric@witopchemical.com	China	23541	58

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