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Author: Subject: DDNP & related compounds: The über thread!
Hazard to Self

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[*] posted on 26-4-2019 at 12:54

Quote: Originally posted by Laboratory of Liptakov  
In this thread, I feel like a student who listens to the debate of several university professors of chemistry.....:D...LL

It's like Russian to me too. :cool:

But they seem to be making progress

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Rosco Bodine

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[*] posted on 13-10-2019 at 02:00

On the preceding page I posted this interesting compound
and have attached the related Journal article which describes the compound at the bottom of page 321 of the article.

Quote: Originally posted by Rosco Bodine  

Here is an interesting compound where hexamethylene tetramine is shown to bridge complex 2 copper compounds, and such a scheme might work for copper DDNR similarly as it does for copper azide and may be useful as a desensitizer integrated on a molecular level. Other metal salts might also be susceptible.

For the complex if it would form with copper DDNR, there would be 4 of the mono-acid DDNR molecules in a compound having 2 copper atoms bridged by hexamethylene tetramine. If the hypothetical compound forms, it may be possible to use the benign ammonium DDNR as a precursor. Whether the speculated compound will form at all or whether any troublesome hydrate may be an issue is completely unknown, since the hypothetical compound is unreported and may be novel.

Glycine should similarly bridge complex 2 copper molecules, and may work better for the same purpose.

hexamethylenetetramine complexed cupric azide.bmp - 221kB

Attachment: php0embtA (1.1MB)
This file has been downloaded 179 times Journal_für_praktische_Chemie 1943 pg 307-328 hexamine complexed copper azide

Hexamine Complexed Copper Azide.bmp - 292kBHexamine Complexed Copper Azide 2.bmp - 427kB

The solubility in ammonia makes this compound interesting for its potential to form a double salt or mixed salt with glycine or hexamine complexed copper perchlorate. Even a cocrystallized mixture could have interesting enhanced properties for incorporation of the azide content.

[Edited on 10/13/2019 by Rosco Bodine]
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International Hazard

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[*] posted on 20-9-2020 at 15:40

Dipicric acid or DIPAM can be obtained in low yield by direct nitration of 3'3-dihydroxybiphenyl or in very good yield by oxidation of 3,3'-Dimethyl-2,2',4,4',6,6'-Hexanitrobiphenyl. Reference: "ADOLPH, HORST G., JOSEPH C. DACONS, and MORTIMER J. KAMLET. Heat Resistant Explosives. XI. An Unusual Oxidation Reaction Leading to 3, 3'-Dihydroxy-2, 2', 4, 4', 6, 6'-Hexanitrobiphenyl (Dipicric Acid, DIPA). No. NOLTR-62-32. NAVAL ORDNANCE LAB WHITE OAK MD, 1962."

DIPA.jpg - 32kB

Would it be possible to selectively reduce a single nitro group on one of the rings using the copper/ascorbic acid reduction scheme due to immediate precipitation as the cuprous salt? Would the resulting mono or diamine derivative be able to diazotize forming a DDNP molecule bridged to a picric acid ring or two DDNP molecules attached to each other? Would the former be able to form salts? Or would the biphenyl bond in such a molecule be very unstable/susceptible to hydrolysis?

[Edited on 20-9-2020 by nitro-genes]
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