18369-65-8Relevant articles and documents
Synthesis of novel triketone-based acidichromic colorants
Lin, Ching-Tsan,Shih, Jen-Hao,Chen, Chung-Ling,Yang, Ding-Yah
, p. 5033 - 5037 (2005)
This letter presents the synthesis and evaluation of two novel triketone-containing acidichromic colorants. Analysis results indicate that both prepared triketone-containing compounds undergo two distinct and reversible color changes under both strongly acidic and basic conditions. Thus, a pH sensitive triketone functional group is introduced for the first time to design and synthesize acidichromic colorants.
Acyloxybutadiene tricarbonyl iron complexes as enzyme-triggered CO-releasing molecules (ET-CORMs): A structure-activity relationship study
Romanski, Steffen,Kraus, Birgit,Guttentag, Miguel,Schlundt, Waldemar,Rücker, Hannelore,Adler, Andreas,Neud?rfl, J?rg-Martin,Alberto, Roger,Amslinger, Sabine,Schmalz, Hans-Günther
supporting information, p. 13862 - 13875 (2013/01/15)
A series of η4-acyloxycyclohexadiene-Fe(CO)3 complexes was prepared and fully characterized by spectroscopic methods including single crystal X-ray diffraction. For this purpose a new synthetic access to differently acylated 1,3- and 1,5-dienol-Fe(CO)3 complexes was developed. The enzymatically triggered CO release from these compounds was monitored (detection of CO through GC and/or by means of a myoglobin assay) and the anti-inflammatory effect of the compounds was assessed by a cellular assay based on the inhibition of NO-production by inducible NO synthase (iNOS). It was demonstrated that the properties (rate of esterase-triggered CO release, iNOS inhibition, cytotoxicity) of the complexes strongly depend on the substitution pattern of the π-ligand and the nature of the acyloxy substituent.
A mild and efficient acetylation of alcohols, phenols and amines with acetic anhydride using La(NO3)3·6H2O as a catalyst under solvent-free conditions
Reddy, T. Srikanth,Narasimhulu,Suryakiran,Mahesh, K. Chinni,Ashalatha,Venkateswarlu
, p. 6825 - 6829 (2007/10/03)
A wide variety of alcohols, phenols and amines are efficiently and selectively converted into the corresponding acetates by treatment with acetic anhydride in the presence of catalytic amounts of La(NO3)3·6H2O under solvent-free conditions at room temperature. The method is compatible with acid sensitive hydroxyl protecting groups such as TBDMS, THP, OBz, OBn, Boc and some isopropylidenes and offers excellent yields of the mono acetates of 1,3-, 1,4- and 1,5-diols.