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#1

Organic Chemistry / Re: Mass spectrometry question...

Last post by uma - March 08, 2026, 10:36:54 AM

Molecular ion peak

m/z 158 = M⁺•

CH3CH2CH2CH2CH2C(=O)OCH2CH2CH3⁺•

Base peak

m/z 56

This is the tallest or most abundance peak, so this is the base peak.

mass spectrum.png

#2

Organic Chemistry / Re: aldehyde reactions questio...

Last post by uma - March 08, 2026, 09:11:38 AM

Quote from: amimi on March 07, 2026, 04:15:45 PMThank you!! Wouldn't the COOH be further reduced though in bottom problem? to just sigma bonds

-COOH can be reduced by LiALH4 only.However -CN group can be reduced to -CH2NH2

#3

Organic Chemistry / Re: aldehyde reactions questio...

Last post by amimi - March 07, 2026, 04:15:45 PM

Thank you!! Wouldn't the COOH be further reduced though in bottom problem? to just sigma bonds

#4

Organic Chemistry / Re: Arrow pushing mechanism qu...

Last post by uma - March 06, 2026, 06:27:37 AM

#5

Organic Chemistry / Re: arrow pushing mechanism qu...

Last post by uma - March 06, 2026, 06:08:30 AM

#6

Organic Chemistry / Re: aldehyde reactions questio...

Last post by uma - March 06, 2026, 05:17:49 AM

#7

Organic Chemistry / Re: acetal formation mechanism

Last post by uma - March 06, 2026, 04:56:55 AM

Here is the mechanism of cyclic acetal format

ion

#8

Organic Chemistry / acetal formation mechanism

Last post by amimi - March 05, 2026, 03:44:04 PM

Hello, I am a bit confused with this, and would appreciate some help! I am trying to write the whole mechanism Screenshot 2026-03-05 at 12.43.48 PM.png

#9

Organic Chemistry / Mass spectrometry question

Last post by amimi - March 04, 2026, 01:38:26 PM

Hello, I would appreciate some help with this question, thank you! Screenshot 2026-03-04 at 10.38.07 AM.png

#10

Organic Chemistry / aldehyde reactions question

Last post by amimi - March 04, 2026, 01:37:47 PM

Hello, I would appreciate some help with this question, thank you!
Screenshot 2026-03-04 at 10.37.42 AM.png