17156-65-9

17156-65-9 - Names and Identifiers

Name	(methyldiphenylsilyl)acetylene
Synonyms	ETHYNYLDIPHENYLMETHYLSILANE ethynyl(methyl)diphenylsilane (METHYLDIPHENYLSILYL)ACETYLENE (methyldiphenylsilyl)acetylene Benzene, 1,1'-(ethynylmethylsilylene)bis-
CAS	17156-65-9
InChI	InChI=1/C15H14Si/c1-3-16(2,14-10-6-4-7-11-14)15-12-8-5-9-13-15/h1,4-13H,2H3

17156-65-9 - Physico-chemical Properties

Molecular Formula	C15H14Si
Molar Mass	222.36
Density	1.01g/mLat 25°C(lit.)
Boling Point	86°C0.05mm Hg(lit.)
Flash Point	>230°F
Vapor Presure	0.00671mmHg at 25°C
Specific Gravity	1.010
Storage Condition	Room Temprature
Sensitive	4: no reaction with water under neutral conditions
Refractive Index	n20/D 1.575(lit.)

17156-65-9 - Risk and Safety

WGK Germany	3
TSCA	No

17156-65-9 - Introduction

(methyldiphenylsilyl)acetylene, chemical formula C6H5C ≡ CSi(CH3)(C6H5)2, often abbreviated as Ph2MeSiC ≡ CH, is an organic silicon compound.

Nature:
(methyldiphenylsilyl)acetylene is a colorless liquid that is volatile at room temperature. It has a lower melting and boiling point and a lower density. Its molecular structure contains ethynyl and phenyl groups, giving the molecule a trumpet-like appearance.

Use:
(methyldiphenylsilyl)acetylene is commonly used as a reagent, Catalyst or raw material in organic synthesis. It has a strong alkaline, can be used to generate carbon negative ions, and participate in the Sn2 substitution reaction. In addition, it can also be used in the synthesis of organosilicon compounds and organometallic complexes and the like.

Method:
There are two main methods for preparing (methyldiphenylsilyl)acetylene: one is to react diphenyldimethylchlorosilane with ethynyl lithium to obtain the product, the other is the reaction of diphenylchloromethylsilane with ethynyllithium to obtain the product.

Safety Information:
(methyldiphenylsilyl)acetylene may be irritating to the skin and eyes, and should be rinsed with plenty of water immediately after contact. It can also be harmful to the water environment, so use it with caution and dispose of waste in an environmentally friendly manner. When using (methyldiphenylsilyl)acetylene, pay attention to the correct operation method and wear protective gloves, goggles and other personal protective equipment.

Last Update：2024-04-10 22:29:15