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5 Cards in this Set
- Front
- Back
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Grignard ether pdt workup |
1. Wash ether with NaOH (neutralize base) 2. Wash with saturated NaCl (drying agent) |
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How is phosphonium salt isolated? |
Vacuum filtered from cold ethyl acetate (it's insoluble in nonpolar solvent) |
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How is FIRST wittig alkene isolated? |
Filtered using cold alcohol since it's partially insoluble in alcohol |
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How was OPPh3 separate in WITTIG 2? |
50/50 water/meOH mixture; alkenes not soluble in it, but byproduct is. |
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How are alkenes isolated in WITTIG 2? |
They are not soluble in 50/50 water+MeOH mix; will precipitate out.Will be EXTRACTED with hexanes rinse. They are not soluble in 50/50 water+MeOH mix; will precipitate out.Will be EXTRACTED with hexanes rinse. |
