1,2-Bis(chlorodimethylsilyl)ethane

1,2-Bis(chlorodimethylsilyl)ethane 속성

1,2-Bis(chlorodimethylsilyl)ethane C화학적 특성, 용도, 생산

화학적 성질

transparent low melting solid

물리적 성질

mp 36–41°C; bp 198°C/734 mmHg.

용도

1,2-Bis(chlorodimethylsilyl)ethane can be used as a reagent for the protection of primary amines as their tetramethyldisilylazacyclopentane or Stabase adducts; used in combination with zinc to form organozinc carbenoids; electrophilic silylating reagent.
Protection of Primary Amines.
Few protecting groups exist for the N,N-diprotection of primary amines. The tetramethyldisilylazacyclopentane or Stabase adduct (3) is particularly attractive for this purpose due to its ease of preparation, base stability and facile removal. This cyclic disilane is easily prepared (eq 1) from the commercially available title reagent (1).For primary amines with pKa values between 10 and 11, typical reaction conditions involve the treatment of a dichloromethane solution of the amine with (1) in the presence of two equivalents of triethylamine at room temperature. Subsequent workup with aqueous dihydrogen phosphate provides (3) in excellent yields.1 Stabase adducts are quite stable to strongly basic conditions such as n-butyllithium and s-butyllithium (at ?25°C), lithium diisopropylamide, and Grignard reagents making it a superb candidate for use in the alkylation of substrates bearing a primary amine. For example, protected amino acid derivatives are easily alkylated (eq 2).After formation of the lithium enolate of the protected ethyl glycinate (4) under standard conditions, exposure to various alkyl halides or aldehydes yields alkylation products such as (5).

1,2-Bis(chlorodimethylsilyl)ethane 준비 용품 및 원자재

원자재

준비 용품

1,2-Bis(chlorodimethylsilyl)ethane 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29798	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	16216	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32760	60
Zjartschem	+86-571 87238903	jocelynpan@zjarts.com	CHINA	993	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29897	58
Xi'an Kono chem co., Ltd.,	029-86107037 13289246953	info@konochemical.com	China	2995	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39916	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49391	58
Hubei Co-Formula Material Tech Co., Ltd.	+86-27-84459282	sales@cfmats.com	CHINA	882	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	13069	58

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