17597-25-0Relevant articles and documents
Lithium naphthalenide induced reductive cleavage of α,β-epoxy ketones: An efficient procedure for the preparation of β-hydroxy ketones
Jankowska, Renata,Mhehe, George L.,Liu, Hsing-Jang
, p. 1581 - 1582 (1999)
Lithium naphthalenide presents itself as a mild and efficient reagent for the cleavage of α,β-epoxy ketones to give the corresponding β-hydroxy ketones in good yields.
Identification of a fossil sterane biomarker in crude oil - An androstane with a modified carbon skeleton
Bender, Matthias,Schmidtmann, Marc,Rullkoetter, Juergen,Summons, Roger E.,Christoffers, Jens
, p. 5934 - 5945 (2013/09/23)
Three constitutional isomers of androstane were prepared for comparison with three unknown fossil C19H32 organic biomarkers ("19A", "19B", and "19C" in elution order in geological samples from Oman. 3β-Methyl-A-nor-androstane was pre
Highly efficient alkene epoxidation and aziridination catalyzed by iron(II) salt + 4,4′,4″-trichloro-2,2′:6′,2″-terpyridine/ 4,4″-dichloro-4′-O-PEG-OCH3-2,2′:6′,2″- terpyridine
Liu, Peng,Wong, Ella Lai-Ming,Yuen, Angella Wing-Hoi,Che, Chi-Ming
supporting information; experimental part, p. 3275 - 3278 (2009/05/27)
(Chemical Equation Presented) "Iron(II) salt + 4,4′,4″- trichloro-2,2′:6′,2″-terpyridine" is an effective catalyst for epoxidation and aziridination of alkenes and intramolecular amidation of sulfamate esters. The epoxidation of allylic-substituted cycloalkenes achieved excellent diastereoselectivities up to 90%. ESI-MS results supported the formation of iron-oxo and -imido intermediates. Derivitization of Cl3terpy to O-PEG-OCH3-Cl2terpy renders the terpyridine unit to be recyclable, and the "iron(II) salt + 4,4″-dichloro-4′-O-PEG-OCH3-2,2′:6′,2″- terpyridine" protocol can be reused without a significant loss of catalytic activity in the alkene epoxidation.
