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Re: Lou's reply-huzonpherst Lou PIlder

Posted by joe schmoe on February 26, 2013, at 7:02:05 [reposted on March 2, 2013, at 17:20:47 | original URL]

In reply to , posted by on December 31, 1969, at 18:00:00

> > J_S
> You wrote,[...benzene rings are not the same thing as benzene by itself...].
> Really? If you could post answers to the following, then I could have the opportunity to respond accordingly.
> A. Where did the benzene rings come from?
> B. If they came from benzene, what is left out if the rings are different from benzene itself?
> C. Is not the chemical structure of benzene in a ring configuration?
> Lou


Benzene rings are very common and are found in an enormous number of chemicals, including amino acids. Serotonin for example is made from tryptophan, an amino acid. Both contain benzene rings and are synthesized by living things. They are not made from benzene.

You can't look at a structure in a chemical and conclude the chemical was made using that structure as a stand alone component. Even if it was, the stand alone component would no longer be stand alone once incorporated into the larger molecule. As I pointed out, a single oxygen atom is a radical and the body has the means to quench it to prevent it from doing damage. That does not mean oxygen gas, O2, is dangerous, quite the contrary, it is necessary to life. The fact it is made from two oxygen atoms does not make it unsafe.

If you want to know how a chemical is made, you can Google for it, for example "clonazepam synthesis." You will be shown the precursor molecules and the steps of the reactions used to make it.

Many useful chemicals are used by attaching things to a benzene ring in place of one or more hydrogen atoms. So what is left out is hydrogen.

Yes a benzene ring is ring-shaped, thus the term benzene ring. It is a ring of carbons with a hydrogen sticking out at each corner. In this simple form it is dangerous. It is not dangerous when it is a component of a larger molecule.


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poster:joe schmoe thread:1039342
URL: http://www.dr-bob.org/babble/20130222/msgs/1039347.html