1,3-Dichloro-1,1,3,3-tetraisopropyldisiloxane

• Catalog No.: L11171
• CAS Number: 69304-37-6
• M. F.: C12H28Cl2OSi2
• M. W.: 315.42712
• Purity: 97%

SYNONYMS

• Title: 1,3-二氯-1,1,3,3-四异丙基二硅氧烷
• IUPAC name: chloro({[chlorobis(propan-2-yl)silyl]oxy})bis(propan-2-yl)silane
• IUPAC Traditional name: chloro[(chlorodiisopropylsilyl)oxy]diisopropylsilane

DATABASE IDS

• MDL Number: MFCD00009655
• Beilstein Number: 1934216
• EC Number: 000-000-0
• CAS Number: 69304-37-6

PROPERTIES

• Purity: 97%
• Boiling Point: 69-70°C/0.5mm
• Density: 0.986
• Flash Point: >110°C(230°F)
• Refractive Index: 1.4540
• GHS Hazard statements: H314-H318
• European Hazard Symbols: Corrosive (C)
• GHS Precautionary statements: P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
• Risk Statements: 34
• Safety Statements: 20-26-36/37/39-45
• Storage Warning: Moisture Sensitive
• TSCA Listed: 否
• Hazard Class: 8
• UN Number: UN1760
• Packing Group: II

REFERENCES

• Reagent for the protection of diols, including carbohydrate-type molecules, as their 1,3-(1,1,3,3-tetraisopropyldisiloxanylidene) (TIPDS) derivatives, formed in the presence of imidazole: J. Chem. Res. Synop., 24 (1979); J. Org. Chem., 50, 1651 (1985), or pyridine-DMF: Tetrahedron, 41, 4545, 4557 (1985). The high steric demand of the TIPDS group enables discrimination between primary and secondary OH. It is readily cleaved by F^- (e.g. TBAF in THF) or by aqueous acid or base. See Appendix 4.