Copper-free Sandmeyer cyanation of arenediazonium o-benzenedisulfonimides
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چکیده
منابع مشابه
Copper-free Sandmeyer cyanation of arenediazonium o-benzenedisulfonimides.
Arene and heteroarenediazonium o-benzenedisulfonimides can be used as efficient reagents in Sandmeyer cyanation. This work reports such reactions carried out by us under very mild conditions using tetrabutyl ammonium cyanide as a safe cyanide source and, interestingly, without the need for a Cu catalyst. The reactions have given rise to aryl nitriles in good yields (25 examples, average yield 7...
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The copper-catalyzed cyanation of disulfides by azobisisobutyronitrile (AIBN) was developed, leading to thiocyanates in moderate to good yields. This procedure tolerates a series of functional groups, such as chloro, nitro, methyl and methoxycarbonyl in the phenyl ring of disulfides. Notably, it enables the use of two ArS units in (ArS)2. CuI was found to be essential for the in situ formation ...
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ژورنال
عنوان ژورنال: Organic & Biomolecular Chemistry
سال: 2016
ISSN: 1477-0520,1477-0539
DOI: 10.1039/c5ob02321a