Two new cytotoxic labdane diterpenes from the rhizomes of Hedychium coronarium

G Suresh1, P Prabhakar Reddy, K Suresh Babu

  • 1Division of Organic Chemistry-I, Indian Institute of Chemical Technology, Hyderabad, India.

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[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.