15839-38-0Relevant academic research and scientific papers
Intramolecular TiCl4-mediated cyclization reaction of β-hydroxyalkynyl acetals
Kim, Yong-Hyun,Lee, Kee-Young,Oh, Chang-Young,Yang, Jae-Gwon,Ham, Won-Hun
, p. 837 - 841 (2002)
Intramolecular TiCl4-mediated cyclization reaction of 1,1-dimethoxy-3-hydroxy-hex-5-yne derivatives produced anti-1-hydroxy-3-methoxy-cyclohex-5-ene derivatives with high diastereoselectivity via antiperiplanar manner on pseudo six-membered chair like conformation (transition state A).
NEW SYNTHESIS OF β-KETO ACETALS
Takazawa, Osamu,Mukaiyama, Teruaki
, p. 1307 - 1308 (1982)
Enamines derived from ketones or aldehydes react smoothly with trialkyl orthoformates in the presence of Lewis acids to give β-keto acetals in good yields.
Competition between electroauxiliaries. Selective electrochemical oxidation of heteroatom compounds having silicon and tin on the same carbon
Yoshida, Jun-Ichi,Watanabe, Mitsuru,Toshioka, Hideaki,Imagawa, Masayuki,Suga, Seiji
, p. 1011 - 1012 (1998)
The selective electrochemical oxidation of heteroatom compounds having two different types of electroauxiliaries, i.e. silicon and tin on the same α carbon has been achieved. The C-Sn bond was cleaved selectively and a nucleophile was introduced. The seco
Total synthesis of (+)-cyperolone
Klahn, Philipp,Duschek, Alexander,Liebert, Clemence,Kirsch, Stefan F.
supporting information; experimental part, p. 1250 - 1253 (2012/05/19)
The total synthesis of (+)-cyperolone, an eudesmane-derived sesquiterpenoid from Cyperus rotundus, is described. The de novo synthesis was accomplished via a 15 step sequence starting from (R)-(-)-carvone. The synthetic route features a platinum-catalyzed
Carbon-carbon bond forming reactions by using bistrifluoromethanesulfonimide
Cossy,Lutz,Alauze,Meyer
, p. 45 - 48 (2007/10/03)
Bistrifluoromethanesulfonimide has been used to catalyze C-C bond forming reactions such as Friedel-Crafts, Mukaiyama, 1,2-addition and 1,4-addition as well as C-glycosidation reactions.
Efficient syntheses of 2-(2,6-dichloro-4-trifluoromethyl-phenyl)tetrahydrocyclopenta, tetrahydrothiopyrano, hexahydrocycloheptapyrazoles and tetrahydroindazoles
Meegalla, Sanath K.,Doller, Dario,Liu, Ruiping,Sha, Deyou,Soll, Richard M.,Dhanoa, Dale S.
, p. 8639 - 8642 (2007/10/03)
Two methods are described for the regiospecific synthesis of 3,4-fused-cycloalkyl-1-arylpyrazoles; the key step is the reaction between aryl hydrazines and cyclic α-(dimethoxymethyl)ketones. The latter are obtained by BF3-promoted alkylation of ketones with trimethylorthoformate.
Partial reduction of annulated heterocycles as a general route to medium rings containing oxygen and nitrogen.
Donohoe,Raoof,Linney,Helliwell
, p. 861 - 864 (2007/10/03)
The preparation of annulated furans and pyrroles is described as part of a general strategy for the synthesis of medium ring heterocycles. After Birch reduction, the corresponding dihydro compounds were oxidatively cleaved to produce medium ring ethers an
Bismuth(III) Triflate: A Water-Stable Equivalent of Trimethylsilyl Triflate for the Catalysis of Mukaiyama Aldol Reactions
Roux, C. Le,Ciliberti, L.,Laurent-Robert, H.,Laporterie, A.,Dubac, J.
, p. 1249 - 1251 (2007/10/03)
Bismuth tris-trifluoromethanesulfonate (1) has been found to be an efficient catalyst for the Mukaiyama aldol-type reactions.The catalytic activity of this catalyst is higher than the one previously reported for the rare earth triflates M(OTf)3 (M = Sc, L
Trimethylsilyl bis(fluorosulfonyl)imide: A New Catalyst for the Reactions of Acetals with Silyl Nucleophiles
Trehan, Achla,Vij, Ashwani,Walia, Meenakshi,Kaur, Gurmeet,Verma, R. D.,Trehan, Sanjay
, p. 7335 - 7338 (2007/10/02)
A new catalyst trimethylsilyl bis(fluorosulfonyl)imide has been prepared for aldol type reactions and allylation of acetals.The catalyst has been found to be more active than trimethylsilyl triflate for the above reactions. - Key words: Trimethylsilyl bis
TRIMETHYLSILYL TRIFLATE CATALYZED ALDOL-TYPE REACTION OF ENOL SILYL ETHERS AND ACETALS OR RELATED COMPOUNDS
Murata, Shizuaki,Suzuki, Chikusa,Noyori, Ryoji
, p. 4259 - 4276 (2007/10/02)
Trimethylsilyl triflate with or without added hindered tertiary amines catalyzes directed condensation of enol trimethylsilyl ethers with acetals, orthoformate, or 2-acetoxytetrahydrofuran or -pyrans to give the corresponding β-alkoxy carbonyl compounds.R
