Hydantoin
Hydantoin, or glycolylurea, is a heterocyclic organic compound with the formula CH2C(O)NHC(O)NH. It is a colorless solid that arises from the reaction of glycolic acid and urea. It is an oxidized derivative of imidazolidine. In a more general sense, hydantoins can refer to a groups and a class of compounds with the same ring structure as the parent. For example, phenytoin (mentioned below) has two phenyl groups substituted onto the number 5 carbon in a hydantoin molecule.
Synthesis
Hydantoin was first isolated in 1861 by Adolf von Baeyer in the course of his study of uric acid. He obtained it by hydrogenation of allantoin, hence the name.
Urech in 1873 synthesized 5-methylhydantoin from alanine sulfate and potassium cyanate in what is now known as the Urech hydantoin synthesis The method is very similar to the modern route using alkyl and arylcyanates. The 5,5-dimethyl compound can also be obtained from acetone cyanohydrin (also discovered by Urech: see cyanohydrin reaction) and ammonium carbonate. This reaction type is called the Bucherer–Bergs reaction.
Podcasts:
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by Dawn
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by Undun
Hate You Now
by: DawnI don't even know about that redemption
'Cause I still hear someone whispering
Trying to tell me something bout you
Don't know how to tell him I'm through
Gave you my sanity, you give me a chance to leave
You're telling me I don't need you, I don't believe you
'Cause I don't need nobody like you
Don't go, don't go, don't want you, I hate you
Don't go, don't go, don't want you, I hate you
Don't go, don't go, don't go too far, I hate you
Don't go, don't go, don't go, I hate you
I turn my head up to the sky
I smoke my reefa, getting high
You know without you I'ma die
You clip my wings now I can't fly
My mama told me never cry
She never told me to say bye
I cannot let you go I tried
I hate you, girl, you know I lie
I hate you, girl, you know I lie
Boy, you're gonna have to use your senses
Just to figure out the distance, difference
How you wanna love me, you choose
Except of why I'm looking confused
I gave you my sanity, I gave you a chance to leave
Telling me I don't need you I don't believe you
'Cause I don't need nobody like you
Don't go, don't go, don't want you, I hate you
Don't go, don't go, don't want you, I hate you
Don't go, don't go, don't go too far, I hate you
Don't go, don't go, don't go, I hate you
You's a muthafuckin' bitch to me
You just left me bleed, you just left me leave
Now I cannot see
'Cause when I cry, I cry, tears of blood
You the one I love
You the one I love
You the one I trust
And you said you can't fuck with me
I can't fuck with you
We can't fuck with we and we cannot see
I hate you, girl you know I lie
I hate you, girl you know I lie
Baby, I can't stand you, baby 'cause I'm gone
I'd rather hate you than see you at the door
Baby, ain't no love left in you, no
If that's what I'm telling you I hate loving you
I don't wanna, don't wanna be without you, no
Why not tell the truth? I hate loving you
I don't wanna, don't wanna be without you
I let you control my heart, baby, you go too far