Resorcinol diacetate

Nitric acid, Sulfuric acid, Resorcinol diacetate, Urea Nitrourea, Formaldehyde, Sodium hydroxide, Ammonia Nitroglycerin, Sodium nitrate, Nitrocellulose, Woodmeal, Potassium nitrate... 

Nitric acid. Sulfuric acid. Resorcinol diacetate. Urea... 

Resacetophenone has been prepared by heating resorcinol with zinc chloride and acetic acid,1,2 with zinc chloride and acetic anhydride,2 and with zinc chloride and acetyl chloride.3 It has also been prepared by the action of zinc chloride on resorcinol diacetate,2 by heating 4-methylumbelliferone with potassium hydroxide,4 by heating resacetophenone carbonic acid,5 and by the action of acetyl chloride on resorcinol.6... 

Cresyl acetate p-Cresyl acetate m-Cresyl acetate Guaiacol acetate Thymyl acetate Carvacryl acetate Resorcinol diacetate Eugenol acetate... 

Raney cobalt alloy, see Aluminium—cobalt alloy, 0049 Raney nickel alloys, see Aluminium—nickel alloys, 0055 Resorcinol diacetate, see 1,3-Diacetoxybenzene, 3285 Resorcinol, see 1,3-Benzenediol, 2325 Rhenium hexafluoride, 4367 Rhenium hexamethoxide, 2599 Rhenium nitride tetrafluoride, 4338 Rhenium, 4884... 

Summary 4,6-Dinitroresorcinol is prepared by the action of 70% nitric acid on resorcinol diacetate. Some urea is added in-order to control the nitration and ensure no by-product nitrosation takes place. After the addition of the 70% nitric acid, the intermediate produced is treated with 90% nitric acid yielding the 4,6-dinitroresorcinol as a golden yellow solid. Commercial Industrial note For related, or similar information, see Application No. 001,243, January 7,1987, by SRI International, to Robert J. Schmitt, (Mountain View, CA, David S. Ross, Palo Alto, CA, James F. Wolfe, Palo Alto, CA. Part or parts of this laboratory process may be protected by international, and/or commercial/industrial processes. Before using this process to legally manufacture the mentioned explosive, with intent to sell, consult any protected commercial or industrial processes related to, similar to, or additional to, the process discussed in this procedure. This process may be used to legally prepare the mentioned explosive for laboratory, educational, or research purposes. 

Phenols can be mononitrated in a two-phase system (ether/water) by sodium nitrate and aqueous hydrochloric acid in the presence of a catalytic amount of lanthanum(III) nitrate in yields genei ly above 80%. Phenol itself gives 2 1 ortho.para nitration, while phenols substituted in the para position give predominantly ortho nitration with some meta nitration (equation 21). As shown recently nitration of phenols in the two-phase system occurs even without lanthanum(III) nitrate. By use of sodium nitrate, aqueous sulfuric acid and a catalytic amount of sodium nitrite in the two-phase system mononitration of phenols can be achieved in high yields. Under these conditions starting from 3-substituted phenols in addition to the nitro compounds formation of quinones has been observed. Polyhydroxy aromatics are typically difficult to nitrate directly. Thus, 4,6-dinitroresorcinol (45) has been synthesized from resorcinol diacetate (44) with nitric acid or mixed solutions of nitric acid/sulfuric acid containing urea as a nitrous trap (equation 22). ... 

Fries rearrangement of resorcinol diacetate (404) with ferric chloride provided 4,6-diacetyl-resorcinol (406). The benzodipyrazole (40) has been best prepared from (406) by treatment with hydrazine hydrate in 2-methoxyethanol (Scheme 19). The 8-methyl homologue (41) of (40) has been prepared in similar fashion <88JMC2034>. 

Howard, A.G., Pizzie, R. A., Studies of the Halogenation of Dissolved Organic Material durmg the chlormadon of saline cooling waters, the model compounds resorcinol diacetate and resorcinol dimethyl ether . Wat. Res. Vol. 19, No. 2, pp. 241-248,1985. 

Figure 9.51 Reaction of resorcinol and acetic acid to 2,4-dihydroxyacetophenone (2,4-DHA,0). resorcinol monoacetate ( ), and resorcinol diacetate (A) at 290°C. ...

Preparation by reaction of o-chloroben-zoic acid with resorcinol diacetate in the presence of hexafluoro-isopropylsulfonic acid in methanesulfonic acid first at 160° for 1 h, then at 180° for 12 h [1441]. 

Also obtained by UV light irradiation of resorcinol diacetate in methanol at 25° [2315]. 

Obtained by Fries rearrangement of 4-isoamyl-resorcinol diacetate with aluminium chloride in nitrobenzene at 50-55° [3449,3487], (11%) [3487]. 

Also obtained by Fries rearrangement of resorcinol diacetate,... 

For some appUcations CR compounds must be adhered to textiles or metals. Bonding resins of the resorcinol type are normally used as internal bonding agents. Because of the scorching effect of resorcinol, modified grades, such as resorcinol diacetate, are recommended to preserve processing safety. 

Resorcinol diacetate in presence of 1,1,2,2,-tetrachloroethane with AICI3 produced 2, 4 -dihydroxyacetophenone, 4,6-diacetylresorcinol and 2,4-diacetylresor-cinol with 14, 13 and 48%, respectively, in a short time of 15 min and microwave irradiation (700 W) (Kim et al., 2004). 

The bis-HCl salt is easily oxidized also, but can be handled. The tetrafunctional monomer for PBO is prepared from resorcinol diacetate by nitration and hydrogenation. Care must be taken in view of explosive side products. A detailed description appeared recently. A probably more economical synthesis of 4,6-diaminoresorcinol has become available by nitration of 1,2,3-trichlorobenzene followed by alkaline hydrolysis and hydrogenation. The status of the work aimed at a commercial process for cis-PBO was reviewed recently.Diaminohydroquinone, the precursor for trans-PBO, can be prepared from chloranil by ammonolysis followed by hydrogenation ... 

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