Results 251 to 260 of about 112,449 (386)

Synthesis of 2‐Fluoropyrroles via [4 + 1] Cycloaddition of α,β‐Unsaturated Imines with In Situ‐Generated Difluorocarbene

European Journal of Organic Chemistry, EarlyView.
2‐Fluoropyrroles are synthesized via the [4 + 1] cycloaddition of α,β‐unsaturated imines with difluorocarbene, generated in situ from trimethylsilyl 2,2‐difluoro‐2‐(fluorosulfonyl)acetate (TFDA). The α,β‐unsaturated imines are treated with TFDA in the presence of a Proton Sponge catalyst.
Kohei Fuchibe, Takaya Miura, Junji Ichikawa   +2 more
wiley   +1 more source

Diastereoselective Synthesis of Silyl-Substituted Pyrrolidines. [PDF]

J Org Chem
Carboni D, Casagranda G, Di Remigio S, Mirone A, Quintavalla A, Lombardo M.   +5 more
europepmc   +1 more source

Synthesis of Diverse β,β‐Diaryl β‐Siloxy Diamines and Application as Organocatalysts

European Journal of Organic Chemistry, Accepted Article.
β,β‐Diaryl‐β‐siloxy diamines were developed as a tunable scaffold for structurally diverse diamine‐based organocatalysts. Synthesis was initiated with the reaction of an oxazolidine methyl ester from L‐serine with various Grignard reagents, introducing a wide range of diaryl substituents at the β‐position.
Satoru Arimitsu, Daiki Tomon, Katsuki Endo, Keidai Takahara   +3 more
wiley   +1 more source

Thioxanthone Synthesis from Thioureas through Double Aryne Insertion into a Carbon-Sulfur Double Bond. [PDF]

Org Lett
Kawada M, Tabata S, Hoshi Y, Yoshida S.
europepmc   +1 more source

Reinvestigation on the optical purities of optically active trimethylsilyl enol ethers of 4-substituted cyclohexanones.

, 1993
Kazumasa Aoki, Makoto Nakajima, Kiyoshi Tomioka, Kenji Koga   +3 more
openalex   +2 more sources

Synthesis of Bioorthogonal Mycolic Acids: Chemoselective Reduction of β‐Ketoesters Containing an Alkyne Using the Noyori Catalyst

European Journal of Organic Chemistry, Accepted Article.
The asymmetric reduction of β‐ketoesters using the Noyori catalyst is a highly effective synthetic methodology, offering excellent stereocontrol for the preparation of enantiopure b‐hydroxyesters from prochiral substrates in high yields. This reaction has been used in the total synthesis of mycolic acids, which are α‐alkyl, β‐hydroxy fatty acids ...
Paulin Rollando, Emilie Lesur, Dominique Urban, Gilles Doisneau, Dominique Guianvarc’h, Yann Bourdreux   +5 more
wiley   +1 more source

Asymmetric cyanoesterification of vinylarenes by electrochemical copper catalysis. [PDF]

Nat Commun
Zhou K, Fu N.
europepmc   +1 more source

Removal of C-ring from the CD-ring skeleton of 1 alpha,25-dihydroxyvitamin D-3 does not alter its target tissue metabolism significantly [PDF]

, 2007
BOUILLON, R, De Clercq, Pierre, GENNARO, L, LING, S, PALINORE, GTR, REDDY, GS, ROBINSON, M, Vandewalle, Maurits, VERSTUYF, A, VOUROS, P, WANG, G, YONG, W   +11 more
core   +1 more source

Cobalt(I)‐Catalyzed E‐Selective Hydroalkynylation of Terminal Alkynes or Internal Alkynes with Silyl‐Substituted Terminal Alkynes

European Journal of Organic Chemistry, EarlyView.
The cross‐hydroalkynylation of silyl‐substituted terminal alkynes, acting as CH‐donor alkynes, with aryl‐ or alkyl‐substituted terminal alkynes, acting as acceptor alkynes, is described. Cross‐hydroalkynylation with internal alkynes acting as acceptor alkynes is successful when at least one aryl substituent is present.
Sebastian M. Weber, Gerhard Hilt
wiley   +1 more source

Ketone-Assisted Alkoxysilane Condensation to Form Siloxane Bonds. [PDF]

Molecules
Rubinsztajn S, Cypryk M, Kurjata J, Kwiatkowska M, Mizerska U.   +4 more
europepmc   +1 more source