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A New Synthesis of 2-Azaallenium Salts

✍ Scribed by Al-Talib, Mahmoud ;Jochims, Johannes C.

Publisher: Wiley (John Wiley & Sons)
Year: 1984
Tongue: English
Weight: 498 KB
Volume: 117
Category: Article
ISSN: 0009-2940
DOI: 10.1002/cber.19841171108

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✦ Synopsis

The a-chloro isocyanates 1 and the a-chloro isothiocyanate 2a react with antimony pentachloride and ketones or aldehydes at low temperatures to give the 2-azaallenium hexachloroantimonates 5aq in high yields. The reaction proceeds via the 1-oxa-(or l-thia)-3-azabutatrienium hexachloroantimonates 3, 4. The reaction is hindered by bulky substituents of both organic compo-

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