Preference for the dienophile to orient with substituents inside (endo) or outside (exo) the forming ring.
If you need to purchase chemical raw materials, submit your demand information to get the latest quotations.
1-Methylene-2-(acetoxymethyl)cyclohexane
3-endo-(p-Toluenesulfonyl)bicyclo<2.2.2>-oct-5-ene-2-exo-carbaldehyde
Silane, (1,1-dimethylethyl)dimethyl[[(2E)-1-methylene-3-(3,4,5-trimethoxyphenyl )-2-propenyl]oxy]-
