User PCK

10 votes

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Tiffeneau–Demjanov rearrangement products

answered Jun 11, 2019 at 20:36

9 votes

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What does "parallel in-register" mean for a protein structure in a fibril?

answered Nov 18, 2019 at 9:15

7 votes

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Can chiral atoms have same substituents but with different orientations?

answered Aug 14, 2018 at 8:45

6 votes

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Why does the carbonyl of carboxylic acids get protonated and not the hydroxyl group?

answered Apr 15, 2019 at 8:18

5 votes

Simplest distillation setup

answered Apr 5, 2019 at 10:09

5 votes

Reasons for negative iodoform test

answered Mar 25, 2019 at 13:13

5 votes

Software recommendations for overlaying molecular structures

answered Mar 11, 2020 at 16:42

4 votes

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Do SN1 reaction always result in Racemisation

answered Nov 29, 2019 at 10:35

4 votes

How to synthesize cyclopentane from cyclohexane?

answered Feb 11, 2020 at 16:14

4 votes

Why is some racemisation possible in Sn2 reaction?

answered Mar 21 at 15:21

3 votes

Which of the following show hyperconjugation

answered Mar 26, 2019 at 15:16

3 votes

Can we oxidize aliphatic alkane to produce carboxylic acid?

answered Sep 4, 2018 at 10:56

3 votes

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Why do tert-butyl ethers in diluted sulfuric acid undergo elimation instead of solvolysis?

answered Sep 10, 2018 at 9:31

3 votes

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Reduction of conjugated double bond by sodium borohydride

answered Jun 25, 2019 at 15:52

2 votes

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Cycloaddition vs Electrocyclic Pathway

answered Jul 29, 2019 at 13:55

2 votes

Fast way to isolate 4-nitrophenol from 4-aminophenol

answered Aug 6, 2019 at 15:43

2 votes

Can the alkyl-oxygen bond in lactones be cleaved in an SN2 reaction?

answered Aug 17, 2018 at 6:00

2 votes

Williamson Ether and Carboxylic Acids

answered Jun 13, 2019 at 19:34

1 vote

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NMR of trigonal bipyramidal molecules

answered Jun 15, 2019 at 8:37

1 vote

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What is the mechanism of ring contraction of 6-bromo-7-methoxy-2,3,4,7-tetrahydrooxepine from seven to five?

answered Jun 10, 2019 at 11:55

1 vote

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Definition of alpha-carbon

answered Jan 17 at 12:40

1 vote

Pedantic: Is NH4(+) or NH4Cl the acid?

answered Apr 26 at 15:04

1 vote

Acetone Enolate-HaloBenzene Reaction

answered Mar 30, 2019 at 20:36

1 vote

Aromatic enol is not possible in...?

answered Apr 4, 2019 at 7:35

1 vote

Which of these reactants will not generate this racemic amine?

answered Aug 16, 2019 at 8:36

0 votes

Why are two C-O single bonds more stable than a C=O double bond (hemiacetal)?

answered Oct 29, 2019 at 9:50

0 votes

4-Bromophenol vs 4-aminophenol pKa in water comparison confusion

answered Jun 10, 2019 at 7:17

0 votes

Can vicinal dihalide produce conjugated alkene in strong base?

answered Sep 5, 2018 at 15:59

0 votes

9,10-dihydro-9,10-ethanoanthracene derivatives. Stereoisomers or different compounds? What are their chemical names?

answered Jul 19, 2023 at 10:00

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29 Answers

Tiffeneau–Demjanov rearrangement products

What does "parallel in-register" mean for a protein structure in a fibril?

Can chiral atoms have same substituents but with different orientations?

Why does the carbonyl of carboxylic acids get protonated and not the hydroxyl group?

Simplest distillation setup

Reasons for negative iodoform test

Software recommendations for overlaying molecular structures

Do SN1 reaction always result in Racemisation

How to synthesize cyclopentane from cyclohexane?

Why is some racemisation possible in Sn2 reaction?

Which of the following show hyperconjugation

Can we oxidize aliphatic alkane to produce carboxylic acid?

Why do tert-butyl ethers in diluted sulfuric acid undergo elimation instead of solvolysis?

Reduction of conjugated double bond by sodium borohydride

Cycloaddition vs Electrocyclic Pathway

Fast way to isolate 4-nitrophenol from 4-aminophenol

Can the alkyl-oxygen bond in lactones be cleaved in an SN2 reaction?

Williamson Ether and Carboxylic Acids

NMR of trigonal bipyramidal molecules

What is the mechanism of ring contraction of 6-bromo-7-methoxy-2,3,4,7-tetrahydrooxepine from seven to five?

Definition of alpha-carbon

Pedantic: Is NH4(+) or NH4Cl the acid?

Acetone Enolate-HaloBenzene Reaction

Aromatic enol is not possible in...?

Which of these reactants will not generate this racemic amine?

Why are two C-O single bonds more stable than a C=O double bond (hemiacetal)?

4-Bromophenol vs 4-aminophenol pKa in water comparison confusion

Can vicinal dihalide produce conjugated alkene in strong base?

9,10-dihydro-9,10-ethanoanthracene derivatives. Stereoisomers or different compounds? What are their chemical names?