N&PD Moderators: Skorpio | someguyontheinternet
I think the halogens bonded to unsaturated carbons makes them less reactive, not more. Like think of the laboratory conditions needed to make PVC out of vinyl chloride. Or going in the other direction: to turn vinyl chloride to acetilide you need a very very powerful base and this does not happen in the body. As far as the alkyne goes: isn't it more stable when bonded to a halogen than when bonded to hydrogen?
Just curious.
High reactivity = unhealthy.1-Halogenalkynes are reknowned for their high reactivity and in particular for their tendency to explode.
1-Halogenalkynes are reknowned for their high reactivity and in particular for their tendency to explode.
An attempt to [distill] the preparation of methyl vinyl chloroethynyl carbinol failed,
however, when a curious series of mild, repeating explosions began after about one-half
hour and continued for several hours.
Also, I remember a study being linked to saying that 2M2B is excreted as the gluconidrate. Liver damage is still possible, tho.
hmm... pinacol seems interesting. similar to 1,4-butanediol, I guess. I'd bet it's worthwhile.
Abstract
The fate of oral doses of 22 glycols has been investigated in the rabbit. Glycols of the general formula, CH2OH(CH2)nCH2OH, where n = 0-6, do not form appreciable amts. of conjugated glucuronic acid. Ethane-1,2-diol is mainly oxidized to CO2. Butane-1,4-diol, pentane-1,5-diol and hexane-1,6-diol yield small amts. of the corresponding dicarboxylic acids in the urine (succinic, glutaric, adipic acids, resp.), but appear to be mainly destroyed in vivo. 3-Methylpentane-1,5-diol yields large amts. of 3-methylglutaric acid in the urine. Glycols of the general formula, CH2OHCRR'CH2OH, form appreciable amts. of conjugated glucuronic acid. These appear to be glucuronides of the unchanged diols, for the monoglucuronide of 2-methyl-2-propylpropane-1,3-diol was isolated. These glycols do not form dicarboxylic acid in vivo, but monocarboxylic acids. 3-Hydroxy-2,2-dimethylpropionic acid was isolated as a metabolite of 2,2-dimethylpropane-1,3-diol. 2-Methyl- and 2-ethylpentane-1,3-diol, butane-1,3-diol, 2,3-dimethylbutane-2,3-diol and 2-methylpentane-1,4- and -2,4-diol are highly conjugated with glucuronic acid. In addn. to the above glycols the following were also studied: propane-1,3-diol, 2-ethylpropane-1,3-diol, butane-1,3-diol, 2-ethylhexane-1,3-diol, heptane-1,3-diol, 2-ethylheptane-1,3-diol, propane-1,2-diol, butane-1,2-diol, but no metablites of these compds. were isolated. The monoglucuronide of butane-2,3-diol was isolated.
The oxidation to succinic goes most likely stepwise, so yes, there should be GHB at some point. I'm still not convinced that it's solely this metabolite that causes butane-1,4-diol's action. The compound has most certainly intrinsic activity, too.Butane-1:4-diol: From the urine of four rabbits given a total of 9 g of this diol there was isolated 0-81 g (7% of dose) of succinic acid, m.p. and mixed m.p. 189°C, after recrystallization from water. After treatment with thionyl chloride, followed by aniline, the acid yielded succinanilide, m.p. and mixed m.p. 228°C. No unchanged diol was found in the urine.
Well, in the case of pinacol there ain't any stereocenters. This statement refers to the other glycols studied. If pinacol undergoes the same fate like other alcohols, we should see of course glucuronides, too. Oxidation is out of question (...tertiary alcohol).Unsuccessful attempts were made to isolate crystalline glucuronides or other metabolites with [...] 2:3-dimethylbutane-2:3-diol (pinacol). Most of these diols contain one or two asymmetric carbon atoms and therefore more than one glucuronide could be formed; this would tend to make the isolation of crystalline glucuronides difficult.
...is not justified.DMTime_warp said:Pinacol so far seems safe although im worried about the metabolization of it into pinacolone. The LD50 is 3380 mg kg for a mouse.
You definitely shouldn't just take 10ml if 5ml was active. Doubling your dose for a relatively unknown, unstudied compound is not a good idea once you've reached activity. When you start off taking .01mg, .02mg, .05mg, .1mg, .2mg, .4mg, .8mg, etc, that makes sense, because you're just trying to find the starting point of activity. After you've reached activity, though, especially enjoyable activity, not bare threshold activity, you need to tread a lot lighter. Some compounds have a steep dose-response curve, where, for example, 5mg is inactive, 6mg is active, 8mg is strongly active, 10mg is dangerous.
Be careful with your life, you don't get re-do's.