56229-74-4Relevant academic research and scientific papers
Synthesis and Diels-Alder Reactions of Butadienylpyridinium Bromides
Lee, Shwu-Jiuan,Tzeng, Chiou-Bih,Liu, Yung-I.,Chien, Chao-Jung,Chou, Ta-Shue
, p. 7812 - 7819 (1997)
1-(3-Sulfolen-3-yl)pyridinium bromide (5) and 1-(3-methyl-2-sulfolen-4-yl)pyridinium bromide (35) have been prepared and served as the stable precursors for the cation-substituted dienes 6a and 32a, respectively. Compounds 6a and 32a are reactive dienes in the Diels-Alder reactions with a number of electron-poor dienophiles. Some [4 + 2] cycloadditions of 6a and 32a can take place in water.
A polymer-supported silyl triflate and subsequent functionalization: Synthesis and solid-phase Diels-Alder reactions of silyloxydienes
Smith, Eric M.
, p. 3285 - 3288 (1999)
The synthesis of a polymer-supported silyl triflate and subsequent functionalization with enolizable α,β-unsaturated aldehydes and ketones to form silyloxydienes is reported herein. This novel route is ideal for the generation of substrates for solid-phas
1-(2-Butadienyl)pyridinium Bromide, a Novel Diene in Diels-Alder Reactions
Lee, Shwu-Jiuan,Chien, Chao-Jung,Peng, Chin-Jen,Chao, Ito,Chou, Ta-shue
, p. 4367 - 4369 (1994)
1-(3-Sulfolenyl)pyridinium bromide (4) serves as the stable precursor for a novel, positively charged diene 6 which undergoes cycloadditions with a number of electron-poor dienophiles.
