Tris(trimethylsilyl)silane

• Catalog No.: 93411
• CAS Number: 1873-77-4
• M. F.: C9H28Si4
• M. W.: 248.66062
• Purity: ≥97.0% (GC)

SYNONYMS

• Title: 三(三甲基硅基)硅烷
• IUPAC name: 1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)trisilane
• IUPAC Traditional name: 1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)trisilane
• Synonyms: TTMSS; 1,1,1,3,3,3-Hexamethyl-2-trimethylsilyl-trisilane; 三(三甲硅烷基)硅烷

DATABASE IDS

• PubChem SID: 24889876
• MDL Number: MFCD00077893
• Beilstein Number: 1923953
• CAS Number: 1873-77-4

PROPERTIES

• Grade: purum
• Linear Formula: [(CH3)3Si]3SiH
• Purity: ≥97.0% (GC)
• Boiling Point: 73 °C/5 mmHg(lit.)
• Density: 0.806 g/mL at 25 °C(lit.)
• Flash Point: 55 °C
• Flash Point: 131 °F
• Refractive Index: n20/D 1.489(lit.)
• Refractive Index: n20/D 1.489
• GHS Signal Word: Warning
• GHS Hazard statements: H226-H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• GHS Precautionary statements: P261-P305 + P351 + P338
• RID/ADR: UN 1993 3/PG 3
• Risk Statements: 10-36/37/38
• Safety Statements: 16-26-36
• Hazard Class: 3
• UN Number: 1993
• Packing Group: 3
• German water hazard class: 3

DETAILS

Description (English)

General description
"Reagent of the Year 1990"
Other Notes
Efficient mediator in organic radical reactions that rivals tributyltin hydride. It is a superior reagent for ecological and practical reasons giving less unwanted reduction products9,10,4,11; In can be used in catalytic amounts in the presence of sodium borohydride; Starting material for various tris(TMS)3silyl compounds
Application
Super Silyl Protecting GroupsUsed in:
• Hydrosilylations1
• Radical reactions2
• Reductions of acid chlorides3
• Reductions of carbon-halogen bonds4
• Hydrosilations of carbonyls5
• Another common application involves the use of the tris(trimethylsilyl)silyl (TTMSS, or super silyl) group when complexed with transition metals and main group elements6,7
• More recently, the super silyl group is being utilized in carbon-carbon bond forming reactions8

Description (简体中文)

General description
"1990 年度试剂"
Other Notes
与三丁基氢化锡竞争的有机自由基反应中的有效介质。它是一种具有出色环保性和实用性的试剂，产生的非目标还原产物更少9,10,4,11；在存在硼氢化钠的条件下以催化量使用；合成多种三(TMS)3硅烷基化合物的原料
Application
Super Silyl Protecting GroupsUsed in:
• Hydrosilylations1
• Radical reactions2
• Reductions of acid chlorides3
• Reductions of carbon-halogen bonds4
• Hydrosilations of carbonyls5
• Another common application involves the use of the tris(trimethylsilyl)silyl (TTMSS, or super silyl) group when complexed with transition metals and main group elements6,7
• More recently, the super silyl group is being utilized in carbon-carbon bond forming reactions8