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Benzene cues = 4 DU, ~7ppm, 5H (integration)

2 singlets due to alkene = H on same side 2H integration in one alkene signal = H on opposite sides

Draw all isomers, strategy Alkyl branch version

Organic chemistry 3 sample probs instead of a methyl or hydride shift, if carbocation is one away from ring, ring expansion occurs…beware of this cue

Gotta know this inside out and be able to pull it off quick on the test. Sorry about the background ASMR (frying nuts with grapeseed oil and salt) but I still liked the thoroughness of this video so made it public.

Alkyne Synthesis | Organic Chemistry

Chem261 More straightforward than it seems Hot potassium permanganate Or Ozone What if it’s an alkyne? Since it’s monosubd, it’ll make COOH if in hot potassium permanganate…but will also make COOH in ozonlysis!!

PS: remember any SN1 may be substitution BUT don’t just draw product like a substitution because ma6be carbocation rearrangement happened…aka draw out entire mechanism PPS: Bulky bases will react with the LEAST HINDERED C’s H

The solid liquid extraction: let gentle boil for 20 mins Liquid liquid extraction: collect distilllate u t’il you have 20mL (10 fractions), or when only 2mL is left

Important PS: need to write H2 in the last hydrogenation reaction (just beside lindlar’s catalyst)

Acid-Base Extraction | Organic Chemistry Lab

Other notes: -When I said the nucleophilic concentration matters in SN1, this is only true to decide WHICH nucleophile will react, but NEVER the rate of SN1. A specific problem would be: draw SN1 product, given 2 nucleophile of differing conc. for a specific problem (since identity doesn’t matter, carbocation will react with the nucleophile in higher concentration). However!! The exam will test...

NOTE: Any time methyl is beside an alkene in ring = draw resonance by shifting double bond on methyl branch (so it looks like an odd double bond branch)

Comes up guaranteed on exam…don’t underestimate this especially when cyclic PS: there is 1 meso in dicyclochlorobutane so only 2 optically activr

Enantiomers or Diastereomers - CYCLIC | Organic Chemistry

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University of Calgary Walk Around (FILM LIKE)

Only 5% know this chemistry fact

80% of people get this biology fact wrong

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