p-Toluenesulfonyl cyanide
ALDRICH/248835 - technical grade, 95%
Synonym: p-Tolylsulfonyl cyanide; Tosyl cyanide
CAS Number: 19158-51-1
Empirical Formula (Hill Notation): C8H7NO2S
Molecular Weight: 181.21
EC Number: 242-849-1
MDL Number: MFCD00009977
Linear Formula: CH3C6H4SO2CN
Product Type: Chemical
| assay | 95% |
| bp | 105-106 °C/1 mmHg (lit.) |
| form | solid |
| functional group | sulfone |
| thiocyanate | |
| grade | technical grade |
| InChI | 1S/C8H7NO2S/c1-7-2-4-8(5- |
| InChI key | JONIMGVUGJVFQD-UHFFFAOYSA |
| mp | 47-50 °C (lit.) |
| Quality Level | 100 ![]() |
| SMILES string | Cc1ccc(cc1)S(=O)(=O)C#N |
| storage temp. | 2-8°C |
| Application: | p-Toluenesulfonyl cyanide can be used in: • The preparation of polyfunctional nitriles. • Free-radical cyanation of B-alkylcatecholboranes. • The synthesis of 4-hyroxypyridines by hetero-Diels-Alder reaction with 1,3-bis-silyl enol ethers. |
| General description: | p-Toluenesulfonyl cyanide is an electron-deficient nitrile. It undergoes hetero-Diels-Alder reaction with silyl enol ether of cyclohexenone to yield hydrolytically sensitive [4+2] adduct. It also undergoes facile [2+3] cycloaddition reaction with azides to form 5-sulfonyl tetrazoles. p-Toluenesulfonyl cyanide also reacts with alcohols in the presence of 1,8-diazabicyclo[5.4.0]un |
| Packaging: | 1, 5 g in glass bottle |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H312 + H332 - H314 |
| Precautionary statements | P280 - P305 + P351 + P338 - P310 |
| Hazard Codes | C |
| Risk Statements | 20/21-34 |
| Safety Statements | 26-27-28-36/37/39-45 |
| RIDADR | UN 3261 8 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 230.0 °F - closed cup |
| Flash Point(C) | 110 °C - closed cup |
| Purity | 95% |
| bp | 105-106 °C/1 mmHg (lit.) |
| mp | 47-50 °C (lit.) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |



