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7 votes
1 answer
475 views

Retrosynthesis of (2E)-1-(2,4-dimethylphenyl)-3-(thiophen-2-yl)prop-2-en-1-one

I am struggling to find a way to disconnect this molecule and I am unsure of the order: First, I was thinking of disconnecting the C=C of the α,β-unsaturated carbonyl. Then for the thiophene group ...
Charlotte's user avatar
4 votes
1 answer
388 views

Absolute configuration of sulfur in phenyl styryl sulfoxide

Provide absolute configuration to sulfur atom. I know that oxygen atom will get the highest priority by Cahn–Ingold–Prelog rule, but what about the next priority? I believe it should be phenyl, but ...
Sushant's user avatar
  • 41
4 votes
1 answer
2k views

Difference between tendency of benzene and thiophene to undergo sulfonation

Why does thiophene possess a greater tendency to undergo sulphonation than benzene? I came across this reaction which employs the use of sulphuric acid to separate thiophene from commercially prepared ...
user27533's user avatar
5 votes
0 answers
219 views

How does lansoprazole degrade in acidic conditions (mechanism)? [closed]

Can anybody help me and explain the mechanism of reaction here? And also I was wondering when disulfide bond is made, can molecule dissociate, return to the previous state and make a disulfide bond ...
Tatjana B.'s user avatar
2 votes
1 answer
155 views

How do I convert 4-(Methylthio)benzaldehyde to 4-(thioacetate)benzaldehyde?

Sorry if I have the incorrect name of the final product. I'm trying to acylate the methyl mercaptan substituent to a thioester (thioacetate). I appreciate any help!
Pat's user avatar
  • 23
1 vote
1 answer
2k views

How does sulbutiamine work in the same way as thiamine, even if it doesn't have a thiazole ring?

So sulbutiamine is said to be a thiamine substitute. Yet - it doesn't contain the thiazole ring that's so important for many of thiamine's functions (highlighted in red). How does it function as a ...
InquilineKea's user avatar