Multi-step synthesis
Multi-step synthesis
Formula
Overall yield = yield₁ × yield₂ × … × yieldₙ
Real World
Pharmaceutical company GSK synthesises the painkiller ibuprofen via a 3-step green synthesis route developed by BHC Company, replacing the original wasteful 6-step Boots process to cut costs and byproducts.
Exam Focus
State reagents, conditions, and intermediate structures at every step — examiners award marks per transformation, not just the final product.
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