30541-56-1Relevant articles and documents
[2π + 2π]-Cycloaddition of biadamantylidene to 4-phenyl-3H-1,2,4-triazole-3,5(4H)-dione. Effects of temperature, high pressure, and solvent
Kiselev,Kornilov,Anikin,Sedov,Konovalov
, p. 1864 - 1869 (2017)
The effects of temperature, solvent nature, and high hydrostatic pressure on the rate of the reaction of biadamantylidene with 4-phenyl-3H-1,2,4-triazole-3,5(4H)-dione have been estimated. Significant shielding of the C=C double bond in biadamantylidene is responsible for the high entropy and volume of activation. Quantitative yield of the reaction in the temperature range 25?45°C is related to its exothermicity. The rate of the [2π + 2π]-cycloaddition unexpectedly weakly depends on the solvent polarity, which makes it radically different from the [2π + 2π]-reaction with tetracyanoethylene.
Synthesis of isolable thiirane 1-imides and their stereospecific ring-enlargement to 1,2-thiazetidines
Sugihara, Yoshiaki,Aoyama, Yui,Okada, Haruki,Nakayama, Juzo
, p. 658 - 659 (2008/12/20)
The isolation of thiirane 1-imides was achieved via imination of anti- and syn-9,9′-bibenzonorbornenylidene sulfides by Chloramine T at room temperature, followed by crystallization of the reaction mixture at -18°C. Allowing CD2Cl2 s
Addition of N-methyltriazolinedione to biadamantylidene
Nelsen, Stephen F.,Klein, Susan J.
, p. 456 - 460 (2007/10/03)
The addition of N-methyltriazolinedione (M) to biadamantylidene (A) gives the [2 + 2) adduct P, but clearly does not proceed in one step beause an aminoaziridinium intermediate (I) can be observed to build up during the reaction. The overall rate of P for
