Searching the Chemical Literature by Structure and by Reaction · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Searching chemistry, not keywords

Science · Chemistry · ages 22-23
Name ______________________   Date ____________
  1. What does a reaction query tell you?

    • Whether a planned transformation has precedent
    • The price of the reagents
    • The journal impact factor
  2. What does a substructure query find?

    • Compounds containing your drawing, whatever they were called
    • Only papers with your exact title words
    • Only compounds your group made
  3. A review article counts as the primary procedure for a reaction.

    Circle one:   True   False

  4. How do you turn a planned coupling into a good reaction query?

    • Copy the whole target molecule exactly
    • Draw the bond change with the right level of generality
    • Search the author names first
  5. Your substructure search returns thousands of hits. What is the sensible move?

    • Read all of them in order
    • Abandon the search entirely
    • Narrow toward your ring and substituents
  6. A review cites the reaction you need. What do you do next?

    • Trace the citation to the first paper and read its conditions
    • Cite the review and start the reaction
    • Email the review author for permission
  7. Your careful search returns nothing. What does that mean for the plan?

    • The step is proven impossible
    • There is no precedent, so the step is untested risk
    • The databases are broken
  8. A hit shares your substrate name but reacts at different atoms. How do you judge it?

    • Real precedent, names match
    • Real precedent, journals rarely err
    • Superficial, the reacting atoms differ
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Searching chemistry, not keywords W1-mt_7vkNiUQ2uw-s1

  1. Whether a planned transformation has precedent · Precedent is exactly what a reaction query retrieves.
  2. Compounds containing your drawing, whatever they were called · Structure search ignores names and matches the drawing.
  3. False · You must trace back to the paper that first published it.
  4. Draw the bond change with the right level of generality · The right generality catches analogues without drowning you.
  5. Narrow toward your ring and substituents · Generality is tunable, and narrowing recovers relevance.
  6. Trace the citation to the first paper and read its conditions · The original paper carries the exact procedure.
  7. There is no precedent, so the step is untested risk · Null results mark unknown territory, not failure.
  8. Superficial, the reacting atoms differ · Precedent lives in reacting atoms and electronics, not names.
Worksheet · LightMySky