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A: Here the reaction goes like this
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Draw the product when the following compound undergoes ring-closing
metathesis.
Ring closing metathesis will give as a ring product.
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- Draw the product formed when CH3CH2CH2CH2CH=CH2 is treated with either(a) H2O, H2SO4; or (b) BH3 followed by H2O2, HO−.1.Explain what is anomeric effect and why it happens? 2.Explain how a glycosyl acetimidate can loss its glycosyl donor activity?Draw the product formed when attached compound is treated with two equivalents of CH3CH2CH2CH2MgBr followed by H2O.
- draw the products formed if the compound reacts with: [assymetric synthesis] a.) NADH (Re Reduction) b.) NaBH4 c.) LiAlH4Assume that acetyl CoA containing a 14C isotopic label in the carboxyl carbon atom is used as starting material and that the mevalonate pathway is followed. Identify the positions in -cadinol where the label would appear.Assume that acetyl CoA containing a 14C isotopic label in the carboxyl carbon atom is used as starting material and that the mevalonate pathway is followed. Identify the positions in lanosterol where the label would appear.
- Treatment of ethyl acetoacetate with NaOEt (2 equiv) and BrCH2CH2Br forms compound X. This reaction is the rst step in the synthesis of illudin-S, an antitumor substance isolated from the jack-o’-lantern, a poisonous, saffron-colored mushroom. What is the structure of X?Draw the product formed when (CH3CH2CH2CH2)2CuLi is treated withattached compound. In some cases, no reaction occurs.Classify each substituent as electron donating or electron withdrawing.