Cyan iodid

Indol-2-ylcopper reagents can also be prepared from 2-lithioindoles and they have some potential for the preparation of 2-substituted indoles. 1-Methyl-indol-2-ylcopper can be prepared by reaction of 2-lithio-l-methylindole with CuBr[10]. It reacts with aryl iodides to give 2-aryl-1-methylindoles. Mixed cyanocuprate reagents can be prepared using CuCN[ll], The cyan-ocuprate from 1-methylindole reacts with allyl bromide to give 2-allyl-l-methylindole. 

Cyan-jodid, n. cyanogen iodide, -kali, n. potassium cyanide. 

Bei der Verseifung der 2-Alkoxycarbonyl- bzw. 2-Aminocarbonyl-Funktion decarboxyliert das zunachst entstehende 2-Carboxy-l,3-dimethyl-benzimidazolium-iodidzu 1,3-Dimethyl-benziinid-azoUum-iodid (81% Schmp. 196 -198°). Das Cyan-Derivat solvolysiert allerdings in hoi Bern Methanol zu l,3-Dimethyl-2-oxo-2,3-dihydro-benzimidazol (67%)499 ... 

Phosphonium Methyl-tris-[2-cyan-ethyl]- (iodid) XII/1, 51... 

From Ethylene.—The reverse of this reaction takes place when hydracrylic acid is treated with hydrogen iodide, HI, as discussed above in (8). The third synthesis of hydracrylic acid shows its relation to eth dene. Ethylene takes up, by addition, hypochlorous acid, HO—Cl, in just the same way as it does bromine or hydrobromic acid. The compound obtained is glycol chlor hydrine. This chlor hydrine, by treatment with potassium cyanide, is converted into the glycol cyan hydrine. The cyan hydrine, being an acid nitrile, yields an acid on hydrolysis. The acid obtained is hydracrylic acid. 

The reaction of with 10% excess benzyl bromide or 34 with 10% excess methyl iodide gave the same product, N-benzyl-N-methyl cyan-amide 47. 

Die Reaktion von 3-Methyl- bzw. 2,3-Dimethyl-l,3-benzothiazolium-iodid mit Natrium-cyanoboranat fiihrt zu den entsprechenden 2,3-Dihydro-l,3-benzothiazolen und Cyan-(2-dial-kylamino-phenylthio)-boranen, die jedoch in der Saure- und Basen-stabilen cyclischen Form vorliegen 2-Cyan-3,3-dialkyl-2,3-dihydro-[Pg.1034]

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