✦ LIBER ✦

α,α-Difluoro-γ-iodo-γ-trimethylsilyl ketones as precursors for the synthesis of α-substituted β-fluoropyrroles

✍ Scribed by Zai-Ming Qui; Donald J. Burton

Publisher: Elsevier Science
Year: 1995
Tongue: French
Weight: 188 KB
Volume: 36
Category: Article
ISSN: 0040-4039
DOI: 10.1016/0040-4039(95)00964-e

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

A mild synthesis of substituted furans f

A mild synthesis of substituted furans from γ-hydroxy-α,β-unsaturated ketones

✍ Douglas M Sammond; Tarek Sammakia 📂 Article 📅 1996 🏛 Elsevier Science 🌐 French ⚖ 194 KB

A synthesis of α-substituted trans-α, β-

A synthesis of α-substituted trans-α, β-dibenzyl-γ-butyrolactones: diastereofacial differentiation in the electrophilic attack on the metal enolates of α, β-dibenzyl-γ-butyrolactones

✍ Moritani Yasunori; Ukita Tatsuzo; Nishitani Takashi; Seki Masahiko; Iwasaki Tame 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 261 KB

Substituted trans-a, /3-dibenzyl-y-butyrolactones were synthesized in a diastereoselective manner by the reaction of the potassium enolates of a, &dibenzyl-ybutyrolactones with electrophiles. The method was applied to the synthesis of (k)trachelogenin.

On the synthesis of cephalosporin antibi

On the synthesis of cephalosporin antibiotics (III). α, β-substituted butenolides and α,β-substituted γ-butyrolactones via Erlenmeyer condensations

✍ H. S. Tan; D. N. Reinhoudt; H. C. Beyerman 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 383 KB

γ-Amino-β-ketosulfones as chiral educts:

γ-Amino-β-ketosulfones as chiral educts: A facile synthesis of enantiopure α-amino ketones

✍ Saumitra Sengupta; Debarati Sen Sarma; Somnath Mondal 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 426 KB

Starting from 'chiral-pool' derived "t-amino-13-ketosulfones, a facile synthesis of enantiopure a-amino ketones has been developed via an ct-alkylation-desulfonation sequence. Extension of this methodology to enantiopure et-acetoxy ketone synthesis,however, have met with limited success.

Synthesis of optically active γ-trimethy

Synthesis of optically active γ-trimethylsilyl-β,γ-epoxy tertiary alcohols by the diastereoselective addition reaction of β-trimethylsilyl-α,β-epoxyketones with Grignard reagents

✍ Sentaro Okamoto; Hiromi Tsujiyama; Toshiharu Yoshino; Fumie Sato 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 239 KB

Asymmetric synthesis of stereodefined α-

Asymmetric synthesis of stereodefined α-alkyl-γ-benzyloxymethyl-β-trimethylsilyl-γ-butyrolactones that serve as an efficient precursor for constructing carbon skeletons having a tertiary or quaternary stereogenic center

✍ Kwangho Kim; Sentaro Okamoto; Yuuki Takayama; Fumie Sato 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 171 KB

The optically active lactone 1 can be transformed to a chiral building block or intermediate for constructing carbon skeletons containing either a tertiary or quaternary stereogenic center by taking advantage of the steric bulk as well as the reactivity of a trimethylsilyl group at the b-position of