In most library databases, you can start by entering a search as if you were talking to a person or writing a paper.
After entering your search, look for a Filter, Limit, or Refine area in the display. Common options include article or document or publication type, language, and publication year. A "review" article or document or publication type is a good starting point, especially if you need to learn more about a topic.
Additional useful options:
Use this approach in SciFindern to find recent English-language review articles about amine functionalization by photoredox catalysis. Use the same approach in Reaxys but click Edit in Query Builder to see how Reaxys modifies your search. Does SciFindern reveal how it modifies your entered search?