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(R)-Limonene: spot the stereochemistry flaw

Single question

A biomimetic intramolecular cyclization of neryl pyrophosphate gives limonene. Substrate and cyclization conditions are right. Check the absolute configuration on the cyclized product.

Stereospecific cyclization in monoterpene biosynthesis
Limonene enantiomers and olfactory chirality
Reading R / S at a cyclohexene stereocenter

Find the flaw

Click the step that contains the flaw, or pick “No flaw” if you think every step is correct.

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