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TERT-BUTYL ISOCYANIDE

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TERT-BUTYL ISOCYANIDE Basic information

Product Name:
TERT-BUTYL ISOCYANIDE
CAS:
7188-38-7
MF:
C5H9N
MW:
83.13
EINECS:
230-553-5
Mol File:
7188-38-7.mol
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TERT-BUTYL ISOCYANIDE Chemical Properties

Melting point:
148-150 °C
Boiling point:
91 °C(lit.)
Density 
0.735 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.376(lit.)
Flash point:
-2 °C
storage temp. 
Flammables area
solubility 
Soluble in organic solvents such as ethanol, methanol, ether, toluene and dichloromethane.
form 
liquid
Specific Gravity
0.735
color 
colorless
BRN 
1903156
Stability:
store cold
CAS DataBase Reference
7188-38-7(CAS DataBase Reference)
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Safety Information

Hazard Codes 
F,T
Risk Statements 
11-23-2017/11/23
Safety Statements 
16-45
RIDADR 
UN 1993 3/PG 2
WGK Germany 
3
RTECS 
EQ7102500
HazardClass 
3
PackingGroup 
II
HS Code 
29299090

MSDS

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TERT-BUTYL ISOCYANIDE Usage And Synthesis

Chemical Properties

clear colorless liquid

Preparation

CAUTION: Use a well-ventilated hood and observe all precautions when using hydrogen cyanide.
To a 1-1, stainless steel Hoke pressure cylinder in a well-ventilated hood is added 196 gm (3.5 moles) of isobutene, 95 gm (3.5 moles) of hydrogen cyanide, and 100 gm (0.7 mole) or cuprous bromide. The cylinder is closed, shaken for 15 hr at 70°C, cooled to room temperature, and vented cautiously in the hood, and the viscous residue is poured slowly into aqueous potassium cyanide (260 gm in 100 ml of water) to decompose the cuprous complex, liberating an organic layer. The organic layer is separated, dried, and distilled under reduced pressure to afford 97 gm, b.p. 60-63°C (314 mm Hg), ng 1.3749, IR 2143 s, 1472 m, 1368 m, 1230 m, 1208 m, 855 w c m - 1; yield, 33% based on starting isobutylene; 16% based on CuBr.
Preparation of t-Butyl Isonitrile

Preparation

Phosgene (1.0 kg, 10.1 mol) was delivered through a wide tube into a stirred solution of N-t-butylformamide (1.01 kg, 10.0 mol) in triethylamine (1.30 kg) and o-dichlorobenzene (7.0 L) in a flask fitted with a reflux condenser charged with a freezing mixture of ice and salt (-20 C°). Water was added, the layers were separated, and the non-aqueous layer was dried over anhydrous potassium carbonate or magnesium sulfate and fractionated; bp 90–92 C°/750 mmHg; yield: 681 g (82%).

TERT-BUTYL ISOCYANIDE Preparation Products And Raw materials

Raw materials

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Jinan Winwind Biological Technology Co., Ltd Gold
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Zhengzhou Kingsfine Chemical Co., Ltd. Gold
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Jinan Shangbo Biological Co., Ltd. Gold
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J & K SCIENTIFIC LTD.
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PharmaBlock Sciences (Nanjing),Inc.
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400-025-5188
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sales@pharmablock.com
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