.alpha.-Chelation controlled nucleophilic addition to chiral .alpha.,.beta.-dialkoxy carbonyl compounds. Diastereoselective preparation of L-xylo and L-lyxo triols

1986 ◽  
Vol 51 (20) ◽  
pp. 3769-3771 ◽  
Author(s):  
Hideo Iida ◽  
Naoki Yamazaki ◽  
Chihiro Kibayashi
Keyword(s):  
Carbonyl Compounds ◽  
Nucleophilic Addition ◽  
Alpha Beta

scholarly journals Hypervalent iodine oxidation of .ALPHA.,.BETA.-unsaturated carbonyl compounds.

1987 ◽  
Vol 35 (2) ◽  
pp. 570-577 ◽  
Author(s):  
YASUMITSU TAMURA ◽  
TAKAYUKI YAKURA ◽  
HIROAKI TERASHI ◽  
JUN-ICHI HARUTA ◽  
YASUYUKI KITA
Keyword(s):  
Carbonyl Compounds ◽  
Hypervalent Iodine ◽  
Alpha Beta

Organic reactions using sodium hydrogentelluride. 3. The Reaction of Sodium Hydrogentelluride with .alpha.,.beta.-Unsaturated Carbonyl Compounds

1994 ◽  
Vol 59 (12) ◽  
pp. 3500-3502 ◽  
Author(s):  
Masakazu Yamashita ◽  
Yoshifumi Tanaka ◽  
Akishi Arita ◽  
Minoru Nishida
Keyword(s):  
Carbonyl Compounds ◽  
Organic Reactions ◽  
Alpha Beta

ChemInform Abstract: REACTION OF LITHIUM DIALKYLCUPRATES WITH BETA-ALKOXY AND BETA-ALKYLTHIO ALPHA,BETA-UNSATURATED CARBONYL COMPOUNDS

1974 ◽  
Vol 5 (10) ◽  
pp. no-no
Author(s):  
G. H. POSNER ◽  
D. J. BRUNELLE
Keyword(s):  
Carbonyl Compounds ◽  
Alpha Beta

Selective oxidation of alcohol function in allylic alcohols to .alpha.,.beta.-unsaturated carbonyl compounds catalyzed by zirconocene complexes

1987 ◽  
Vol 52 (22) ◽  
pp. 4855-4859 ◽  
Author(s):  
Tatsuya Nakano ◽  
Yasutaka Ishii ◽  
Masaya Ogawa
Keyword(s):  
Selective Oxidation ◽  
Carbonyl Compounds ◽  
Allylic Alcohols ◽  
Alpha Beta

scholarly journals Addition of H-phosphonates to quinine-derived carbonyl compounds. An unexpected C9 phosphonate–phosphate rearrangement and tandem intramolecular piperidine elimination

2014 ◽  
Vol 10 ◽  
pp. 883-889
Author(s):  
Łukasz Górecki ◽  
Artur Mucha ◽  
Paweł Kafarski
Keyword(s):  
Phosphorus Atom ◽  
Carbonyl Compounds ◽  
Nucleophilic Addition ◽  
Carbon Skeleton ◽  
Vinyl Group

The Abramov reaction, a base-catalyzed nucleophilic addition of dialkyl H-phosphonates (phosphites) to carbonyl compounds, was performed with oxidized quinine derivatives as the substrates. Homologous aldehydes obtained from the vinyl group reacted in a typical way which led to α-hydroxyphosphonates, first reported compounds containing a direct P–C bond between the quinine carbon skeleton and a phosphorus atom. For the C9 ketones a phosphonate–phosphate rearrangement, associated with a tandem elimination of the piperidine fragment, was evidenced.

scholarly journals Catalytic Asymmetric Epoxidation of .ALPHA.,.BETA.-Unsaturated Carbonyl Compounds.

2002 ◽  
Vol 60 (2) ◽  
pp. 94-105 ◽  
Author(s):  
Tetsuhiro Nemoto ◽  
Takashi Ohshima ◽  
Masakatsu Shibasaki
Keyword(s):  
Carbonyl Compounds ◽  
Asymmetric Epoxidation ◽  
Alpha Beta ◽  
Catalytic Asymmetric

Bifunctional Squaramide Catalyzed Asymmetric Synthesis of Chiral α-Mercaptosilanes

2021 ◽  
Author(s):  
Ye Zhang ◽  
Jingcheng Guo ◽  
Jinna Han ◽  
Xiangui Zhou ◽  
Wei Cao ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Nucleophilic Addition

Bifunctional squaramide-catalyzed nucleophilic addition of thiophenols to easily available β-silyl α,β-unsaturated carbonyl compounds has been successfully developed. A structurally diverse set of chiral α-mercaptosilanes was efficiently prepared in good to...

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