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View Full Version : ochem question.. that i don't have a clue Keroro 07-10-2006, 06:38 PM How many combination(s) of carbonyl compound and ylide could be used to synthesize CH3CH=CH2? what chapter or section should i study for this question? answer is 2 btw DMD-2-B 07-10-2006, 06:52 PM How many combination(s) of carbonyl compound and ylide could be used to synthesize CH3CH=CH2? what chapter or section should i study for this question? answer is 2 btw The answer should be in the carbonyls chapter, toward the end of the book. Good luck! DonExodus 07-10-2006, 07:44 PM Just break the double bond, ylide/corbonyl for each side = 2 combos... if Im thinking correctly ;) asckwan 07-10-2006, 07:44 PM A Ylide can be viewed as just a carbon carbon double bond. So you just look at the number of double bonds, in this case 1. So there are two ways to form this compound. #1 having a COH2 and a Ylide looking like this (C6H5)3P-:CHCH3 #2 having CH3COH and a Ylide looking like (C6H5)3P-:CH2 Hope that helps!! DonExodus 07-10-2006, 08:02 PM Just break the double bond, ylide/carbonyl for each side = 2 combos... if Im thinking correctly ;) |