Ferric nitrate hydrate

If the reaction of potassium with liquid ammonia slows down before all the potassium is consumed, an additional pinch of ferric nitrate hydrate is added. 

Carboxy-3,5-dichlorophenyl diazo-nium chloride, 31, 97 Catalyst, ammonium acetate, 31, 25, 27 copper chromite, 31, 32 ferric nitrate, hydrated, 31, 53 piperidine, 31, 35 piperidine acetate, 31, 57 Catechol, 33, 74... 

A suspension of sodium amide (0.275 mole) (Note 1) in liquid ammonia is prepared in the following manner in a 1-1. threenecked flask equipped with an air condenser (Note 2), a sealed mechanical stirrer, and a dropping funnel. Commercial anhydrous liquid ammonia (600 ml.) is introduced by pouring from an Erlenmeyer flask (Note 3). To the stirred liquid ammonia is added a small piece of sodium. After the appearance of a permanent blue color (Note 4) a few crystals of ferric nitrate hydrate (ica. 0.1 g.) are added, followed by small pieces of freshly cut sodium (Note 5) until 6.32 g. (0.275 g. atom) has been added. After all the sodium is converted to the amide (Note 6), 42.0 g. (0.250 mole) of diphenylmethane (Note 7) in 20 ml. of anhydrous ether is added (Note 8). The deep red suspension is stirred for 15 minutes. n-Butyl bromide (37.6 g., 0.274 mole) (Note 7) in... 

Conversion is indicated by the discharge of the blue color (ca. 30 minutes). The addition of another portion of ferric nitrate hydrate will catalyze the conversion. 

A 1-1. three-necked flask is equipped with an air condenser (Note 1), a ball-sealed mechanical stirrer, and a glass stopper. The stopper is removed, and 800 ml. of anhydrous liquid ammonia is introduced from a cylinder through an inlet tube. The tube is removed and replaced by the stopper. To the stirred ammonia is added a small piece of sodium. After the appearance of a blue color a few crystals of ferric nitrate hydrate (about... 

Catalyst, alumina, 34, 79, 35, 73 ammonium acetate, 31, 25, 27 boron tnfluonde etherate, 38, 26 copper chromite, 31, 32, 36, 12 cupric acetate monohydrate, 38, 14 cuprous oxide silver oxide, 36, 36, 37 ferric nitrate, hydrated, 31, 53 phosphoric acid, 38, 25 piperidine, 31, 35 piperidine acetate, 31, 57 Raney nickel, 36, 21, 38, 22 sulfuric acid, 34, 26 Catechol, 33, 74 Cetylmalonic acid, 34, 16 Cetylmalonic ester, 34,13 Chlorination, by sulfuryl chloride, 33, 45, 37, 8... 

In a 1-1. three-necked flask equipped with a dry ice-acetone condenser and a sealed mechanical stirrer is placed 700 ml. of commerdal, anhydrous, liquid ammonia To the stirred ammonia is added a small piece of potassium metal Caution Care should he exercised in handling potassium metal, since it is extremely reactive and it ignites on contact with water, atmospheric moisture, or alcohol It should he manipulated under toluene or xylene, and blotted with filter paper before addition ) After the appearance of a blue color a few crystals of ferric nitrate hydrate ca. 0 1 g.) are added, followed by small pieces of freshly cut potassium metal until 7 0 g (0 18 g. atom) has been added After all the potassium has been converted to the amide (Note 7), 24.9 g. (0 154 mole) of sodio-2-formyl-6-methylcyclohexanone is added carefully through a powder funnel (Note 8) After 1 hour a solution of 28.2 g (0.21 mole) of -butyl bromide (Note 9) in 50 ml of anhydrous ether is added dropwise from an addition funnel The mixture is stirred for 3 hours, and then the dry ice-acetone condenser is replaced by a water condenser. A steam bath is placed under the flask, and the ammonia is evaporated (Caution ) as 400 ml of anhydrous ether is added. When the... 

Favorskil rearrangement of 2-chloro-cyclohexanone, 39, 37 Ferric chloride, 36, 31 37, 77 Ferric nitrate hydrate, 39, 73 Ferrocene, 36, 31, 34 Ferrous chloride solution in tetrahy-drofuran, 36, 31, 34 Fischer indole synthesis, of 1,2-benzo-3,4-dihydrocarbazole, 30, 91 of 1,2,3,4-tetrahydrocarbazole, 30, 90 Flavone, 32, 72 Flavylium chloride, 32, 75 Flow meter, 34, 7 Fluorene, 34, 32 39, 44 Fluorene, 9-methyl-, 39, 43 9-Fluorenecarboxylic acid, 33, 37 o-Fluorobromobenzene, 39, 75... 

Thus 500 ml. of commercial anhydrous liquid anunonia is introduced into the flask from a cylinder through an inlet tube. The liquid is stirred, and a 0.5-g. piece of potassium is removed from a container of kerosene, blotted with filter paper, and added. After the appearance of a blue color about 0.25 g. of ferric nitrate hydrate is added, followed by 0.5-g. pieces of potassium until 9 g. (0.23 mole) has been added. Discharge of the deep blue color after about 20 min. indicates complete conversion to potassium amide. In contrast to sodamide and lithium amide, which form suspensions in liquid ammonia, potassium amide appears to be mostly in solution, although the solutions are opaque and have been regarded by some workers as suspensions. 

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