electrocyclic造句

例句与造句

1. Reversible electrocyclic cleavage of the 2-vinylcyclobutenone yields a dienylketene.
2. In addition, the torquoselectivity in an electrocyclic reaction refers to the direction of rotation.
3. Electrocyclic reactions occur frequently in nature.
4. Structure 16 is a transition state proposed to explain the concerted electrocyclic reaction and the carbonyl formation.
5. It was proposed by Piancatelli that the reaction is a thermal electrocyclic reaction of a trans isomer.
6. It's difficult to find electrocyclic in a sentence. 用electrocyclic造句挺难的
7. The photochromism is due to electrocyclic cleavage of the C-spiro-O bond with photoexcitation.
8. Since thermal electrocyclic reactions occur in the HOMO, it is first necessary to draw the appropriate molecular orbitals.
9. At high temperatures, benzocyclobutenes can undergo electrocyclic ring-opening to form " o "-xylylenes.
10. Although they describe an electrocyclic reaction, Corey has nothing to offer with respect to explaining the stereospecificity of the synthesis.
11. Torquoselectivity is also used to describe selective electrocyclic ring openings, in which different directions of rotation produce distinct structural isomers.
12. This set of rules can also be derived from an analysis of the molecular orbitals for predicting the stereochemistry of electrocyclic reactions.
13. They operate by means of a 6-pi electrocyclic reaction, the thermal analog of which is impossible due to steric hindrance.
14. A 4n electron electrocyclic ring opening reaction can be considered to have 2 components  the ?-system and the breaking ?-bond.
15. One study describes an unusual 8? disrotatory  6? conrotatory electrocyclic cascade reaction aiming to minimise the number of steps required to synthesise a fenestrane.
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