发明授权
US06465658B2 Process for the preparation of N,N′-carbonyldiazoles and azolide salts 失效
制备N,N'-羰基二唑和唑啉盐的方法

Process for the preparation of N,N′-carbonyldiazoles and azolide salts
摘要:
This invention relates to the preparation of N,N′-carbonyldiazoles in a particularly advantageous manner by reacting corresponding azolide salts with phosgene in an aromatic compound or an ether as solvent. The azolide salts are preferably prepared by a novel process from an azole that is reacted with a compound of the formula M′R7 or MgR8Z′ in the presence of a solvent.
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