| 41. | In many nucleophilic reactions, addition to the carbonyl group is very important.
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| 42. | In this reaction an oxygen is regioselectively inserted near an adjacent carbonyl group.
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| 43. | Acid-Catalyzed Synthesis of Carbonyl Ylides from Hydroxy-3-Pyrones.
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| 44. | However, it is uncertain whether the metallocarbene intermediate generates the carbonyl ylide.
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| 45. | Finally, deprotonation of the oxygen of the carbonyl group produces the ester.
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| 46. | For example, the related unsaturated esters from carbonyl compounds such as benzaldehyde:
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| 47. | In the Mond process, nickel carbonyl is used to produce pure nickel.
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| 48. | Carbon monoxide has different binding modes in metal carbonyls.
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| 49. | Other metal carbonyls are prepared by less direct methods.
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| 50. | Several models exist to describe chiral induction at carbonyl carbons during nucleophilic additions.
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