A theoretical and experimental study of the effects of silyl substituents in enantioselective reactions catalyzed by diphenylprolinol silyl ether

Y Hayashi, D Okamura, T Yamazaki… - … A European Journal, 2014 - Wiley Online Library
The effect of silyl substituents in diphenylprolinol silyl ether catalysts was investigated.
Mechanistically, reactions catalyzed by diphenylprolinol silyl ether can be categorized into …

Computational investigations of the stereoselectivities of proline-related catalysts for aldol reactions

C Allemann, JM Um, KN Houk - Journal of Molecular Catalysis A: Chemical, 2010 - Elsevier
Computational investigation of the aldol reaction of benzaldehyde with acetone catalyzed by
various proline derivatives and 2-azetidine carboxylic acid reveal the origins of …

Thermally denatured state determines refolding in lipase: mutational analysis

S Ahmad, NM Rao - Protein Science, 2009 - Wiley Online Library
Irreversibility of thermally denatured proteins due to aggregation limits thermodynamic
characterization of proteins and also confounds the identification of thermostable mutants in …

Asymmetric Synthesis of Cα‐Substituted Prolines through Curtin–Hammett‐Controlled Diastereoselective N‐Alkylation

H Cho, H Jeon, JE Shin, S Lee… - Chemistry–A European …, 2019 - Wiley Online Library
Asymmetric synthesis of α‐substituted proline derivatives has been accomplished by an
efficient chirality‐transfer method. High diastereoselectivity of the N‐alkylation of the proline …

[HTML][HTML] Deducing the conformational space for an octa-proline helix

SMA Waly, AC Benniston, A Harriman - Chemical Science, 2024 - pubs.rsc.org
A molecular dyad, PY-P8-PER, comprising a proline octamer sandwiched between pyrene
and perylene terminals has been synthesized in order to address the dynamics of electronic …

[HTML][HTML] Comparative effects of trifluoromethyl-and methyl-group substitutions in proline

V Kubyshkin, S Pridma, N Budisa - New Journal of Chemistry, 2018 - pubs.rsc.org
Proline is one of a kind. This amino acid exhibits a variety of unique functions in biological
contexts, which continue to be discovered and developed. In addition to the reactivity of the …

[HTML][HTML] Diastereoselective synthesis of highly functionalized proline derivatives

AN Philippova, DV Vorobyeva, PS Gribanov… - Molecules, 2022 - mdpi.com
An efficient way to access highly functionalized proline derivatives was developed based on
a Cu (I)-catalyzed reaction between CF3-substituted allenynes and tosylazide, which …

Concise access to enantiopure (S)-and (R)-α-trifluoromethyl pyroglutamic acids from ethyl trifluoropyruvate-based chiral CF3-oxazolidines (Fox)

G Chaume, MC Van Severen, L Ricard… - Journal of Fluorine …, 2008 - Elsevier
A straightforward synthesis of enantiopure (S)-and (R)-α-Tfm-pyroglutamic acid is reported.
The strategy is based on the use of a chiral CF3-hydroxymorpholinone intermediate …

CisTrans Conformational Analysis of δ-Azaproline in Peptides

I Duttagupta, D Misra, S Bhunya, A Paul… - The Journal of Organic …, 2015 - ACS Publications
The cis–trans isomerization and conformer specificity of δ-azaproline and its carbamate-
protected form in linear and cyclic peptides were investigated using NMR and α …

Is the Backbone Conformation of Cα‐Methyl Proline Restricted to a Single Region?

M De Poli, A Moretto, M Crisma… - … A European Journal, 2009 - Wiley Online Library
Cα‐Methyl‐l‐proline, or l‐(αMe) Pro, is probably the most conformationally constrained α‐
amino acid. In particular, its ω and ϕ torsion angles are restricted to about 180 and− 60° …