Triethylsilyl Trifluoromethanesulfonate is readily sol hydrocarbons, dialkyl ethers, halogenated
solvents. CH2Cl2 is employed most commonly. Reactions in
1,2-dichloroethane proceed faster than those in CCl4 or Et2O.
Protic solvents and THF react with trialkylsilyl triflates and are
therefore not suitable.
물리적 상태
발연 액체
Specific Gravity
1.169
색상
투명한 무색~연한 갈색
수용성
디클로로메탄, 탄화수소, 디알킬 에테르 및 할로겐화 용매와 혼합 가능합니다. 물과 섞이지 않습니다.
감도
Moisture Sensitive
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
BRN
3590541
안정성
Moisture Sensitive and Hygroscopic, Moisture Sensitive And Hygroscopic
피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338
눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P363
다시 사용전 오염된 의류는 세척하시오.
P405
밀봉하여 저장하시오.
NFPA 704
2
3
2
W
Triethylsilyl trifluoromethanesulfonate C화학적 특성, 용도, 생산
화학적 성질
clear colorless to light brown fuming liquid
물리적 성질
85–86 °C/12 mmHg; d 1.169 g cm?3.
용도
Triethylsilyl Trifluoromethanesulfonate can be used as potent silylating agent and as Lewis acid catalyst. Triethylsilyl ethers are generally
more stable towards hydrolysis than are trimethylsilyl ethers, and
consequently the Et3Si moiety has gained increasing use as a protecting group for alcohols. However, since it is often difficult to
silylate sterically hindered hydroxyl groups using Et3SiCl, triethylsilyl perchlorate and triethylsilyl triflate (Et3SiOTf) were introduced to overcome this problem. Jefford has reported that condensation
reactions of 2-trimethylsiloxyfuran with aldehydes can be catalyzed by Et3SiOTf to give mainly the threo addition product
(eq 8).
제조 방법
Triethylsilyl Trifluoromethanesulfonate can be prepared by reacting chlorotriethylsilane with trifluoromethanesulfonic acid followed by
distillation.
Triethylsilyl trifluoromethanesulfonate 준비 용품 및 원자재
