Some scientific research about 33100-27-5

Application of 33100-27-5, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 33100-27-5, Name is 1,4,7,10,13-Pentaoxacyclopentadecane, molecular formula is C10H20O5. In a Article£¬once mentioned of 33100-27-5

Derivatives of Borole, XVIII. – Tricarbonyliron: Reactivity of the Coordinated Ligands

The borole complex (C4H4BPh)Fe(CO)3 (1) undergoes Friedel-Crafts acetylation (MeCOCl/AlCl3) at the meta-position of the phenyl substituent while the derivatives (C4H4BPh)Fe(CO)2L (3, a: L=NMe3, b: L=PMe3) are acetylated at the 2-position of the borole ring.Organolithium reagents (LiMe, LiBu) add to 1 at the boron atom below -50 deg C while nucleophilic attack at the carbonyl C atom takes place at higher temperatures with formation of acyl anions <(C4H4BPh)Fe(CO)2(COR)>– (6a,b-).The Fischer carbene complex (C4H4BPh)Fe(CO)2 (7) is obtained from 6a-/BF4.Complex 1 reacts with LiN(SiMe3)2 to give <(C4H4BPh)Fe(CO)2(CN)>– (8-) and with 5 M NaOH/C6H6/NBu4HSO4 to produce the hydride NBu4<(C4H4BPh)FeH(CO)2> (NBu4*9).A highly reactive dianion <(C4H4BPh)Fe(CO)2>2- (102-) is obtained by deprotonation of 9- or by reduction of 1 or 3a in THF at -70 deg C.Treatment of 102- with Ph3SnCl gives <(C4H4BPh)Fe(CO)2(SnPh3)>– (11-) which is isolated as NEt4*11.Slow reduction of 3a with sodium amalgam in THF at -30 deg C produces doubly CO-bridged cis-<((C4H4BPh)Fe(CO)2)2>2- (122-) which is deprotonated to the mu2-hydrido anion – (13-). Key Words: (Borole)carbonyliron derivatives, electrophilic substitution, nucleophilic addition, reduction/ Iron complexes

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 33100-27-5 is helpful to your research., Application of 33100-27-5

Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare