The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-(tert-Butyl)-1H-pyrrole-2,5-dione(SMILESS: O=C(C=C1)N(C(C)(C)C)C1=O,cas:4144-22-3) is researched.SDS of cas: 1470372-59-8. The article 《The kinetic profile of phthalazinium-2-dicyanomethanide 1,3-dipole with 2π-dipolarophiles: U-shaped dipolarophilic activity and classic type II dipole behavior. Reaction rates and DFT calculations》 in relation to this compound, is published in Journal of the Chemical Society, Perkin Transactions 2. Let’s take a look at the latest research on this compound (cas:4144-22-3).
Kinetic data measured for the reactions of phthalazinium-2-dicyanomethanide 1,3-dipole with 26 dipolarophiles ranging from electron-poor to electron-rich place this dipole firmly in the class II category where reactions may be dipole-HOMO or -LUMO controlled depending on the nature of the dipolarophile. Minimal solvent polarity effects, small Hammett ρ values, and highly neg. entropies of activation and DFT calculations support concerted nonsynchronous cycloadditions and the observed regiochem. for the full range of dipolarophiles.
Here is a brief introduction to this compound(4144-22-3)Quality Control of 1-(tert-Butyl)-1H-pyrrole-2,5-dione, if you want to know about other compounds related to this compound(4144-22-3), you can read my other articles.
Reference:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics