Isobutyl, abbreviation

Abbreviations MIA, 5-(A-methyl-A-isobutyl)amiloride DCCD, JV,AT -dicycIohexylcarbodiimide Az-PZA, 4A-azidosalicyIic-5A/-piperazine-amiloride Br-EIPA, 5-(Af-ethyI-IV-isopropyl)-6-bromoamiIoride PrBCM, propylbenzilylcholine mustard. 

Diisobutylaluminum hydride, [(CH3)2CHCH2]2AIH, abbreviated as DIBAL-H, has two bulky isobutyl groups, which make this reagent less reactive than LiAllTi. The single H atom is donated as H in hydride reductions. 

Abbreviation Me = methyl [CH3], Et = ethyl [C2H5], iBu = isobutyl [CHjCHCCHjlJ. 

Abbreviations DMSO, dimethylsulfoxide DMF, dimethyl formamide NMP, N-methylpyrrolidone MIBK, methyl isobutyl ketone DME, 1,2-dimethoxyethane iPrOAc also known as IPAc THF, tetrahydrofuran 2-MeTHF, 2-methyltetrahydrofuran MTBE, methyl t-butyl ether NA, not available. 

Initiation reactions are usually started by an active free radical such as peroxide (-0-0-), e.g. benzoyl peroxide is a good inititator for the free radical addition polymerisation of styrene to produce polystyrene AICI3 is an initiator for the cationic addition polymerisation of isobutylene to form isobutyl synthetic rubber or azobisiso-butyronitrile compounds (-N=N-) (abbreviated to AIBN). Propagation reactions are the continuing process and, eventually, lead to the termination stage that occurs by combination or disproportionation. This usually occurs when the free radicals combine with themselves and signals the end of the polymerisation process. All polymers formed by this process are thermoplastics. Table 4.1 is a list of common polymers prepared by the addition process. 

MIBK. Abbreviation for methyl isobutyl ketone, mica. 

Compound class Compound Abbreviation CAS No. Ethers methyl tert-butyl ether MTBE 1634-04-4 ethyl tert-butyl ether ETBE 637-92-3 tert-amyl methyl ether TAME 994-05-8 diiso- propyl ether DIPE 108-20-3 Alcohols methanol ethanol MeOH Eton 67-56-1 64-17-5 isopropyl alcohol IPA 67-63-0 isobutyl alcohol IBA 78-83-1 tert- butyl alcohol TBA 75-65-0... 

Dividing the amino acids into classes makes them easier to learn. The aliphatic side chain amino acids include glycine, the amino acid in which R = H, and four amino acids with alkyl side chains. Alanine is the amino acid with a methyl side chain, and valine has an isopropyl side chain. Can you guess which amino acid—leucine or isoleucine— has an isobutyl side chain If you gave the obvious answer, you guessed incorrectly. Isoleucine does not have an iso group it is leucine that has an isobutyl substituent— isoleucine has a ec-butyl substituent. Each of the amino acids has both a three-letter abbreviation (the first three letters of the name in most cases) and a single-letter abbreviation. 

Diluent abbreviations PhNOi, nitrobenzene EtN02, nitroethane 1,2-DCE, 1,2-dichloroethane MIBK, methyl isobutyl ketone DCM, dichlo-romethane. 

Poly(imino-l,4-phenyleneiminotereph-thaloyl), see poly(p-phenylene terephthal amide) poly(p-iodostyrene) 782 polyisobutene, see polyisobutylene poly(isobutyl acrylate) 784 poly(isobutyl methacrylate) 784 polyisobutylene 780,18 letter abbreviation 17... 

Abbreviations-. MeOH, methanol, methyl alcohol EtOH, ethanol, ethyl alcohol NPA, 1-propanol, n-propyl alcohol IPA, isopropyl alcohol, 2-propanol NBA, 1-butanol, n-butyl alcohol SBA, 2-butanol, iec-butyl alcohol IBA, 2-methyl-1-propanol, isobutyl alcohol TBA, 2-methyl-2-propanol, t-butyl alcohol PA, 1-pentanol, n-pentyl alcohol EG, ethylene glycol. 

Abbreviations ACT, acetone MEK, methyl ethyl ketone, 2-butanone MPK, methyl propyl ketone, 2-pentanone MIBK, methyl isobutyl ketone, 2-methyl-4-pentanone MBK, methyl butyl ketone, 2-hexanone MIAK, methyl isoamyl ketone, 2-methyl-5-hexanone MAK, methyl amyl ketone, 2-heptanone EA, ethyl acetate. 

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