Hydrazine pentyl

Bis(hydrazine)tin(II) chloride, 4064 Bis(2-hydroperoxy-4-methyl-2-pentyl) peroxide, 3560... 

The various titanium mixed systems have been used not only to reduce dinitrogen to ammonia, but also to hydrazine (55) and to organonitrogen compounds. Thus, mixtures of TiCL, sodium, and naphthalene were found to give traces of naphthylamines (55). Reaction of (17-C5H5)2Ti(CsH5)2 with phenyllithium in the presence of N2 gave small amounts of aniline (55). Reaction of (rj-CjHs TiCU with Mg, N2, and diethyl ketone afforded a mixture of 3-pentylamine and di(3-pentyl)amine in 25-50% yield based on fixed N2 (56). 

Hydrazin l,l-Bis-[2-chlor-ethyl]-2-(1-methyl-pentyl)- E16a, 539 (Hydrazon-Red.)... 

Hydrazin 2-Acetyl-l-(2-diethyl-amino-4-methyl-pentyl)- X/2, 8... 

Pentyl-(3)-l-[3-phenyl-pentyl-(3)]-hydrazin (R1 = R2 = C2H5)11 51,5 g (0,209 Mol) frisch destilliertes Pentanon-(3)-[3-phenyl-pentyl-(3)]-hydrazon werden in Athanol iiber 2 g Platin(TV)-oxid bei 2073-4 bar hydriert. Nach Beendigung der Wasserstoff-Aufnahme (—24 Stdn.) wird filtriert, i. Vak. unter Stickstoff einge-dampft und unter Stickstoff iiber cine Spiralsaulc dcstillicrt Ausbcute 44,5 g (81% d.Th.) Kp o 110° no — 1,5012. 

A solution of the alkyl bromide (1 mole) in ethanol (100 ml) is added with vigorous stirring to 100% hydrazine hydrate (500 g) during 3 h, the temperature being kept below 30°. After being stirred for a further 2 h at room temperature the solution is extracted with dry ether for 24 h the extract is evaporated and the residual alkylhydrazine is distilled from barium oxide through a Vigreux column. Yields for these hydrazines are ethyl 41, propyl 66, butyl 71, pentyl 41, and hexyl 40%. 

Pyridinium salts of type (57) are smoothly converted into iV-substituted pyridones (58) on reaction with pentyl nitrite and sodium methoxide, in an average yield of 64% (Scheme 24). 3-Phenacylpyridinium salts, e.g. (59), react with hydrazine and potassium hydroxide to give 4-alkyl-6-phenylpyridazines, e.g. (60), by a process involving ring-opening, ring-closure, and Wolff-Kishner reduction (Scheme 25). ... 

Pentachlorophenyl radicals have been generated by the reaction of 2,3,4,5,6-pentachloroaniline with pentyl nitrite and by oxidation of pentachlorophenyl-hydrazine with silver oxide or bleaching powder. ... 

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