January 07, 2025, 02:55:01 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: reactivity explanation  (Read 2139 times)

0 Members and 1 Guest are viewing this topic.

Offline medist

  • New Member
  • **
  • Posts: 8
  • Mole Snacks: +0/-0
reactivity explanation
« on: February 28, 2014, 01:36:50 PM »
Can some one help me in explaining the higher reactivity of 4-Phenyl-1,2,4-triazoline-3,5-dione in cyclo addtitions than any other dienophiles?
Logged

Offline TheUnassuming

  • Chemist
  • Full Member
  • *
  • Posts: 461
  • Mole Snacks: +48/-1
Re: reactivity explanation
« Reply #1 on: February 28, 2014, 02:16:24 PM »
In general what makes a dienophile better or worse (electronically) to engage in cycloadditions (could the substitution of nitrogens vs carbons or the benzyl vs esters make the necessary shift to the HOMO)? 
Do you think steric constraints of being in a ring could shift the Pi* orbitals to a more favorable position? 
Logged
When in doubt, avoid the Stille coupling.
Pages: [1]   Go Up
« previous next »
Sponsored Links