브로모트리메틸실란
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브로모트리메틸실란 속성
- 녹는점
- -43 °C
- 끓는 점
- 79 °C(lit.)
- 밀도
- 1.16 g/mL at 25 °C(lit.)
- 굴절률
- n
20/D 1.424(lit.)
- 인화점
- 90 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 물에서 분해되다
- 물리적 상태
- 액체
- Specific Gravity
- 1.1725
- 색상
- 무색~황색으로 투명함
- 수용성
- 물에서 분해되다
- 감도
- Moisture Sensitive
- Hydrolytic Sensitivity
- 8: reacts rapidly with moisture, water, protic solvents
- BRN
- 1731135
- 안정성
- 안정적인. 가연성. 강산, 강산화제와 호환되지 않습니다. 물이나 습한 공기에 노출되면 분해될 수 있습니다.
- CAS 데이터베이스
- 2857-97-8(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | C | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 10-34-29-14 | ||
| 안전지침서 | 16-26-36/37/39-45-8 | ||
| 유엔번호(UN No.) | UN 2920 8/PG 2 | ||
| WGK 독일 | 3 | ||
| F 고인화성물질 | 10-21 | ||
| TSCA | Yes | ||
| 위험 등급 | 3 | ||
| 포장분류 | II | ||
| HS 번호 | 29310095 | ||
| 유해화학물질 필터링 | 2020-1-960(신규화학물질) | ||
| 함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 브로모트리메틸실란[Bromotrimethylsilane; 2857-97-8] 및 이를 5% 이상 함유한 혼합물 |
브로모트리메틸실란 C화학적 특성, 용도, 생산
화학적 성질
Clear yellow liquid물리적 성질
bp 79°C; d 1.188 g cm?3; n20 D 1.4240; fp 32°C.용도
Bromotrimethylsilane is a mild and selective reagent for cleavage of lactones, epoxides, acetals, phosphonate esters and certain ethers; effective reagent for formation of silyl enol ethers; can function as brominating agent.Amines react with TMS-Br to form isolable adducts, which react readily with ketones to form enamines under mild conditions (eq 15).
제조 방법
although many methods are reported, only a few are provided here: chlorotrimethylsilane undergoes halogen exchange with either magnesium bromide in Et2O or sodium bromide in MeCN, which allows in situ reagent formation (eq 1); alternatively, hexamethyldisilane reacts with bromine in benzene solution or neat, to afford only TMS-Br with no byproducts (eq 2).4 TMS-Br may also be generated by reaction of hexamethyldisiloxane and aluminum bromide (eq 3).However, it should be noted that the reactivity of in situ generated reagent appears to depend upon the method of preparation.
일반 설명
Bromotrimethylsilane is used with Cl3 to catalyze the direct allylation of a variety of alcohols with allyltrimethylsilane.Purification Methods
Purify it by repeated fractional distillation and store it in sealed ampoules in the dark. [McCusker & Reilly J Am Chem Soc 75 1583 1953.] Also fractionate it through a 15-plate column (0.8 x 32cm packed with 1/16in single turn helices of Pt-Ir wire). [Gilliam et al. J Am Chem Soc 68 1161 1946, Pray et al. J Am Chem Soc 70 433 1948, Beilstein 4 IV 4008.]브로모트리메틸실란 준비 용품 및 원자재
원자재
준비 용품
TriMethyl(broModifluoroMethyl)silane
헥사메틸디실란
PROPARGYLTRIMETHYLSILANE
3,3'-Dibromo-5,5'-bis(trimethylsilyl)-2,2'-bithiophene
1-(Trimethylsiloxy)cyclopentene
2,3,4,6-TETRA-O-PIVALOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE
(C6H5CH2CH2NH3)2PbBr4
(PEA2PbBr4)
1,3,4-Oxadiazole, 2-(4-fluorophenyl)-5-(trimethylsilyl)-
브로모트리메틸실란 공급 업체
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