The cationic complexes X1+-A exhibited high catalytic activities for ethylene dimerization, affording butenes (C4) with a high selectivity of up to 97.7 % (1-butene: 99.3 %). Differences in activities and selectivities suggest that the phosphine–sulfonamide ligands remain coordinated to the metal...
Ethers cannot serve as hydrogen-bond donors, so their boiling points are lower than those of alcohols of equivalent molecular weight, but higher than those of hydrocarbons due to greater dipole-dipole forces. Alkyl halideshave functional group R-F, R-Cl, R-Br, R-I where R is an alkyl gro...
Commercially HR PIB is prepared by the polymerization of pure IB with BF3 as coinitiator1 or polymerization of C4 mixture (IB, 1-butene, cis-2-butene, trans-2-butene, and 1,3-butadiene) using AlCl3 or EtAlCl2 based catalyst systems.101 The polymerization of pure IB in the presence of ...
of Lycopodium alkaloids inspired by the hidden functional group pairing pattern Jing Zhang1,2, Jinbao Wu1,2, Benke Hong1,2, Wenying Ai1,2, Xiaoming Wang1,2, Houhua Li2 & Xiaoguang Lei2,3 Natural products continue to provide a rich source of inspiration for both chemists and biologists. ...
What is a group of rams called? What is a phenol? What are osteocytes? What is anabolism? What is butene? What is ectoderm? What are canonical structures? What is the function of the stacking gel? What is symbiosis? What are liposomes? What is the function of a nematocyst?Explore...
How many carbons are in a molecule of hexane? How many hydrogen atoms is the carbonyl group bonded to? What is an enantiomer in organic chemistry? What is isomerism in organic chemistry? How many isomers are there when you mix 1-butene with HBr? What are the functional groups in phenaceti...
$${{{Dehydration}}}\,{{{rate}}}=\frac{{{n}}_{{{\rm{initial}}}_{{{\rm{t}}}-{{{\rm{BuOH}}}{\times }{{{Yiel}}}{{{d}}}_{{{\rm{iso}}}{\mbox{-}}{{{\rm{butene}}}{{{time}}}{\times }{{m}}_{{{\rm{cat}}}$$ (6) Machine learning (ML) Non-negative Least...
Draw the structural formulas of the four-carbon hydrocarbons butane, 1-butene, and 1-butyne. Classify each molecule, and explain the differences between them.(a) Draw the structural formulas and name all the isomers of C_4 H_9 Cl. (b) Draw the structural formulas and ...
1. An alternating copolymer having functional groups obtained by copolymerizing at least one olefin selected from the group consisting of isobutylene, propylene, butene-1, 2-methylbutene-1, 2-methyl-pentene-1, hexene-1, butene-2, 4-methylpentene-1, β-methallylchloride, 2-methyl-4-chloropenten...
Cave, Tetrahedron Letters, 34, 1993, 5633, which involves the reaction of the appropriate alcohol with 2-methyl-2-butene catalyzed by boron trifluoride etherate, can be employed for the preparation of the t-amyl ethers. The alkoxy, alkylthio or dialkylamino substituted ethers, for example 6-[...