38. The initial steps of acid-catalyzed hydrolvsis of the following orthoester can give two different dioxocarbenium ion intermediates. Show what these cations are and predict which will dominate. H,C20 OC,Hs

Q: NH2

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Q: 67- g/ Give a reaction mechanism OH EtO,CN=NCO,Et ʼNO2 CH2NO2 PPH3 92%

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A: i is the answer.

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Q: 錢の 9. へ. NAGH,2O ム 2ついて म्नृण्नि - प०v 2. 2、CA。エ

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Q: HCl a. 40.°C HCl 40 °C b.

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