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Synthese von Methylisothiazolinone
Verfasst: 25.10. 2001 14:19
von BCHann
<HTML>Weiß jemand eine Syntheseanleitung ?
Danke.
Lars</HTML>
Re: Synthese von Methylisothiazolinone
Verfasst: 25.10. 2001 16:51
von ondrej
<HTML>ALso erstmal die Formalitäten:
Registry Number: 2682-20-4
CA Index Name: 3(2H)-Isothiazolone, 2-methyl- (9CI)
Literatur:
Isothioazoles. I. 4-Isothiazolin-3-ones. General synthesis from 3,3'-dithiodipropionamides. Lewis, Sheldon N.; Miller, George A.; Hausman, Martin; Szamborski, Eugene C. Rohm and Haas Co., Spring House, Pa., USA. J. Heterocycl. Chem. (1971), 8(4), 571-80.
Syntheses of beta-lactams by ring contraction of isothiazolidinones. Easton, Christopher J. Dep. Chem., Univ. Canterbury, Christchurch, N. Z. J. Chem. Soc., Perkin Trans. 1 (1985), (1), 153-7.
denke das reicht Dir!
Ondrej
P.S.: Wenn es passt, klick auf ein paar Werbebanner *g*</HTML>
Re: Synthese von Methylisothiazolinone
Verfasst: 27.05. 2002 08:52
von Juliane
Hallo! Wäre lieb, wenn uns jemand ganz schnell sagen könnte, was Methylisothiazolinone und Methylchloriosothiazolinone sind!
Haben die irgendwelche Nebenwirkungen?
Vielen lieben Dank. Ciau, Juliane
Verfasst: 24.05. 2008 09:10
von Katharina No. 101
Hi, Juliane: Hier ein Bericht von Dr. Mercola
When taking a shower, it is doubtful the thought, "How is this shampoo affecting my nerves ?" ever comes to mind. Though perhaps more people should pay attention to the products they are using on a daily basis, as some contain a potentially dangerous chemical, methylisothiazolinone (MIT), which may have detrimental effects on the nervous system.
While the purpose of MIT is to prevent bacteria from developing, researchers found that contact with it restricted growth of axons and dendrites of immature nerves found in rat brain cells. The rat studies also showed that chronic exposure to this chemical led to a malfunction in the way neurons communicate with one another. One researcher explained that direct exposure to high concentrations of MIT would irritate the skin because it can damage skin cells. Yet since the chemical only affects the cells it comes in contact with, there is no way the chemical can get into the bloodstream and go to the brain.
Based on their findings, researchers concluded that people working directly with MIT are the most at risk; however, additional tests still must be administered in order to determine if MIT is harmful to humans in the concentrations found in household products.
MIT Hideouts
Shampoo (Head and Shoulders, Suave, Clairol)
Pantene hair conditioner
Revlon hair color
Hand lotions
Paint
Forbes December 6, 2004
EurekAlert December 5, 2004
Sometimes Referred to as “The Forgotten Vitamin”
Vitamin K is absolutely essential to build strong bones… and helps promote heart and immune health.* This little-known vitamin may be one of the keys to fighting the signs of aging.* Plus, it’s a stronger antioxidant than vitamin E or coenzyme Q10.*
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Find Out More
Dr. Mercola's Comments:
I've previously posted information on my site about the hidden, and often toxic, chemicals found in commonly used products such as cosmetics and household cleaners. And, contrary to what the study shows, it is important to recognize that whatever you spread on your skin has a VERY REAL chance of being absorbed into your blood stream and causing some serious damage in your body.
Antibacterial hand soap is another household item that poses many health risks. This is because, just as MIT is put in shampoos and hand lotions to prevent bacteria from forming, antibacterial soap contains an active ingredient known as triclosan. This antibacterial agent kills bacteria and inhibits bacterial growth; however, it also has been shown to kill human cells. Antibacterial ingredients can be found in some of the same products MIT is found in, such as:
Laundry detergents
Shampoos
Toothpastes
Body washes
Dish soaps
The reason so many consumers use products like these is because they have been marketed as an effective and necessary way to lower the risk of infection. However, many scientists fear that widespread use could lead to a strain of resistant bacteria, or "superbugs," causing the ingredients to lose effectiveness for the times when they really are needed.
Scientists have also found that using antibacterial products apparently offers little protection against the most COMMON germs!
In my practice, I have found the best way to maintain ultimate hygiene is by using the Clenzology Advanced Hygiene System. This hygiene kit is simple to use and only takes a matter of minutes, which makes it ideal for families with young children.
Most importantly, the Clenzology soap is not antibacterial, yet it is capable of reaching the tens of thousands of germs on the backs and palms of the hands, on the fingers and under the fingernails. PLEASE NOTE: The facial solutions in this kit must be diluted as directed before use. If you are pregnant or have a history of thyroid problems consult a physician before using this product.
If you are concerned about the numerous toxic chemicals we are exposed to on a daily basis, I strongly urge you to read Our Toxic World: A Wake Up Call. The author, Dr. Doris Rapp, does a thorough job of uncovering the many ways we are exposed to toxic chemicals and how they take a toll on our health and contribute to many chronic diseases.
Also, learn more about the wide-ranging use of MIT in common household products we take for granted by checking out this list, compiled by the National Institutes of Health.
Related Articles:
The Truth About Antibacterial Soaps -- And Why You Should Avoid Them
Your Skin Has Natural Antibiotics
Infectious Disease Expert Warns of Dangers of Anti-Bacterial Soaps and Antibiotics
Antibacterial Soaps Popularity May be Spreading Resistant Bacteria
Hygiene Systems To Improve Health
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Verfasst: 24.05. 2008 10:57
von Beamer
wtf^^ thread is aus 2002 ^^