2-TRIMETHYLSILYL-1,3-DITHIANE

2-TRIMETHYLSILYL-1,3-DITHIANE 구조식 이미지
카스 번호:
13411-42-2
상품명:
2-TRIMETHYLSILYL-1,3-DITHIANE
동의어(영문):
2-TRIMETHYLSILYL-1,3-DITHIANE;1,3-DITHIAN-2-YLTRIMETHYLSILANE;1,3-Dithiane-2-yltrimethylsilane;2-TRIMETHYLSILYL-1,3-DITHIANE 97%;1,3-Dithiane, 2-(trimethylsilyl)-;2-Trimethylsilyl-1,3-dithiane,97%;Silane, 1,3-dithian-2-yltrimethyl-;2-Trimethylsilyl-1,3-dithiane, 98+%;2-TRIMETHYLSILYL-1,3-DITHIANE, 99+%
CBNumber:
CB2671400
분자식:
C7H16S2Si
포뮬러 무게:
192.42
MOL 파일:
13411-42-2.mol
MSDS 파일:
SDS

2-TRIMETHYLSILYL-1,3-DITHIANE 속성

끓는 점
54-55 °C0.17 mm Hg(lit.)
밀도
1.014 g/mL at 25 °C(lit.)
굴절률
n20/D 1.533(lit.)
인화점
205 °F
저장 조건
2-8°C
용해도
물에 불용성, 유기 용액에 용해됨
물리적 상태
투명한 액체
색상
Colorless to Light yellow to Light orange
Specific Gravity
1.014
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
BRN
1616463
CAS 데이터베이스
13411-42-2(CAS DataBase Reference)
안전
  • 위험 및 안전 성명
안전지침서 23-24/25
유엔번호(UN No.) 3334
WGK 독일 3
F 고인화성물질 13
TSCA No
HS 번호 2934.99.9001
그림문자(GHS):
신호 어:
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
예방조치문구:
NFPA 704
0
0 0

2-TRIMETHYLSILYL-1,3-DITHIANE C화학적 특성, 용도, 생산

화학적 성질

CLEAR COLORLESS TO SLIGHTLY YELLOW LIQUID

물리적 성질

bp 54–55 °C/0.17 mmHg.

용도

2-Trimethylsilyl-1,3-dithiane is the precursor of dithioketene acetals which are good substrates for both cationic and anionic cyclization processes; the anion reacts with unsaturated ketones and aldehydes to give vinyl dithioketene acetals that can be used as dienes or for the preparation of substituted α,β-unsaturated alkyl ketones; alkylation of the anion provides a general synthesis of acylsilanes. It participates the following reactions: Thioketene Acetals, Cationic and Anionic Cyclizations, Unsaturated Dithioketene Acetals, Acylsilanes, Multicomponent Linchpin Reactions, Formation of Bis(acylsilanes) etc.

제조 방법

2-Trimethylsilyl-1,3-dithiane is prepared by alkylation of 2-lithio-1,3- dithiane with chlorotrimethylsilane (eq 1).

일반 설명

2-(Trimethylsilyl)-1,3-dithiane participates in Lewis base-catalyzed 1,3-dithiane addition to electrophiles such as carbonyl compounds and N-substituted aldimines. It undergoes novel diazo transfer reaction with tosyl azide in hexamethylphosphoramide-THF to yield 2-diazo-1,3-dithiane, which on decomposition yields formal carbene adducts. It is a versatile acyl anion equivalent.

Purification Methods

Fractionally distil the dithiane through an efficient column and collect the fractions that have the correct NMR and IR spectra. 1H NMR (CCl4) 6.36 (SiMe3), 9.87 (SCHS) and dithiane H at 7 and 8 (ratio 1:9:4:2) from Me4Si; UV 244nm ( 711), sh 227nm ( 800). [Corey et al. J Am Chem Soc 89 max 434 1967.]

2-TRIMETHYLSILYL-1,3-DITHIANE 준비 용품 및 원자재

원자재

준비 용품


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