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Benzyl isocyanate, is used as a protected ammonia equivalent in the stereo selective ring-opening of chiral 2,3-epoxy alcohols (from Sharpless asymmetric epoxidation). The key step in the sequence involves intramolecular cyclization of the carbamate intermediate. It is also used in a multicomponent, stereospecific synthesis of 1,3-oxazinane-2,4-diones employing an Al-salph complex.
LL Ferstandig.; RA Scherrer. Mechanism of Isocyanate Reactions with Ethanol1. J. Am. Chem. Soc. 195981(18) , 4838-4842.
DG Hoare.; DE Koshland Jr. A procedure for the selective modification of carboxyl groups in proteins. J. Am. Chem. Soc. 196688(9) , 2057-2058.
Protected ammonia equivalent in the stereoselective ring-opening of chiral 2,3-epoxy alcohols (from Sharpless asymmetric epoxidation). The key step in the sequence involves intramolecular cyclization of the carbamate intermediate: J. Org. Chem., 50, 3752 (1985):
For general reactions of isocyanates, see Appendix 3.
Hazard Statements: H226-H301-H330-H315-H319-H334-H335
Flammable liquid and vapour. Toxic if swallowed. Fatal if inhaled. Causes skin irritation. Causes serious eye irritation. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause respiratory irritation.
Precautionary Statements: P260-P201-P280a-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves and eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.