Representative examples of such 1-alkyne compounds include 1-propyne; 1-butyne; 1-pentyne; 1-hexyne; 1-octyne; 1-decyne, 1-dodecyne; 1-hexadecyne; 1-octadecyne; 3-methyl-1-butyne; 3-methyl-1-pentyne; 3-ethyl-1-pentyne; 3-propyl-6-methyl-1-heptyne; 3-cyclopentyl-1-propyne; etc...
Flash point, °C: 101-228 Rat oral LD50, mg/kg: >2000/tetramethyl-5-decyne-4,7-diol, 2,4,7,9-, Carcinogenic: NTP, IARC, OSHA, ACGIH: No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen. ECOLOGICAL PROPERTI...
High molecular weight hyperbranched polyarylenes were synthesized in high yields by one-pot copolycyclotrimerizations of 2,5-diethynylthiophene (1), 4,4'-biphenyldiyne (2) and 2,7-diethynylfluorenes (3) with 1-heptyne (4) and 1-dodecyne (5) using TaCl5*Ph4Sn catalysts in toluene....
The alkyne-functionalized substrate was placed in a toluene solution of 5-decyne with a catalytic amount of WCl6/Ph4Sn and was allowed to react under microwave irradiation at 150 °C for 30 min. Microwaves accelerate the reaction considerably (around 24 h without). At the end of the ...
Geng J. X,Zhao X. G,Zhou E. L,Li G,,Lam J. W. Y,Tang B Z.High order liquid crystalline structure of poly(11-{[(4‘-heptyloxy-4-biphenylyl) carbonyl] oxy}-1-undecyne).Molecular Crystals and Liquid Crystals. 2003Geng J. X,Zhao X. G,Zhou E. L,Li G,,Lam J. W. Y,...
N-Ethyl-2(and 4)-methylbenzenesulfonamide, 2,4-diphenyl-4-methyl-1(and 2)-pentene, and 2,4,7,9-tetramethyl-5-decyne-4,7-diol were present on ... K Bentayeb,LK Ackerman,TH Begley - 《Journal of Agricultural & Food Chemistry》 被引量: 33发表: 2012年 Laminated film having poly(4-...
High molecular weight hyperbranched polyarylenes were synthesized in high yields by one-pot copolycyclotrimerizations of 2,5-diethynylthiophene (1), 4,4' -biphenyldiyne (2) and 2,7-diethynylfluorenes (3) with l-heptyne (4) and 1-dodecyne (5) using TaCl5路Ph4Sn catalysts in toluene...
High molecular weight hyperbranched polyarylenes were synthesized in high yields by one-pot copolycyclotrimerizations of 2,5-diethynylthiophene (1), 4,4′-biphenyldiyne (2) and 2,7-diethynylfluorenes (3) with 1-heptyne (4) and 1-dodecyne (5) using TaCl5·Ph4Sn catalysts in toluene....
High molecular weight hyperbranched polyarylenes were synthesized in high yields by one-pot copolycyclotrimerizations of 2,5-diethynylthiophene (1), 4,4'-biphenyldiyne (2) and 2,7-diethynylfluorenes (3) with 1-heptyne (4) and 1-dodecyne (5) using TaCl5*Ph4Sn catalysts in toluene....
High molecular weight, hyperbranched polyarylenes were synthesized in high isolation yields by the copolycyclotrimerizations of 2,5-diethynylthiophene ( 1), 4,4 ′-biphenyldiyne ( 2), and 2,7-diethynylfluorenes ( 3) with 1-heptyne ( 4) and 1-dodecyne ( 5) using TaCl 5–Ph 4Sn ...