Continuum of Mechanisms for Nucleophilic Substitutions of Cyclic Acetals [PDF]
Organic Letters, 2008 The effect of nucleophile strength on diastereoselectivity in the nucleophilic substitution of cyclic acetals was explored. Stereoselectivity remained constant and high as nucleophilicity increased until a threshold value was reached. Beyond this point, however, selection of Lewis acid determined whether stereochemical inversion or erosion was observed.
Jennifer R, Krumper +2 more
openaire +2 more sources
Journal of Materials Research and Technology, 2022 Cyclic stability of elastocaloric effect is the key factor that restricts the elastocaloric cooling application of Ni–Mn–Sn alloys fabricated by the conventional melting technique.
Wanyuan Gui +7 more
doaj +1 more source
A Power Associative Loop Structure for the Construction of Non-Linear Components of Block Cipher
IEEE Access, 2020 In the symmetric key cryptography, the purpose of the substitution box is to generate confusion and hence improve the security of the whole cryptosystem.
Sadam Hussain +3 more
doaj +1 more source
Ruthenium-Catalyzed Allylic Substitution of Cyclic Allyl Carbonates with Nucleophiles. Stereoselectivity and Scope of the Reaction [PDF]
, 2016 CpRuCl(cod)/NH4PF6 (Cp = cyclopentadienyl, cod = 1,5-cyclooctadiene) is an effective catalyst system for the allylic substitution of cyclic allyl carbonates with nucleophiles.
Teruyuki Kondo (1685632) +2 more
core +3 more sources
Trypsin inhibition by macrocyclic and open-chain variants of the squash inhibitor MCoTI-II [PDF]
, 2005 MCoTl-I and MCoTl-II from the seeds of Momordica cochinchinensis are inhibitors of trypsin-like proteases and the only known members of the large family of squash inhibitors that are cyclic and contain an additional loop connecting the amino- and the ...
Avrutina, Olga +9 more
core +1 more source
DFT Studies of New Class of Single-Headed Nucleosides Derived from the D-glucaric Acid
Scientific Journal of King Faisal University: Basic and Applied Sciences, 2020 The nucleoside analogues can be conveniently classified into cyclic or acyclic analogues. The goal of this study is to anticipate the structural and electronic properties of new single-headed acyclo-C-nucleosides derived from the D-glucaric acid which ...
Sarah Amara +2 more
doaj +1 more source
Synthesis, self-assembly and lipoplex formulation of two novel cyclic phosphonate lipids [PDF]
QScience Connect, 2013 Background: Synthetic cationic lipids hold much potential as gene packaging and delivery agents for the treatment of inherited and acquired life threatening diseases, such as cancer, AIDS, cardiovascular diseases, and certain autoimmune disorders ...
JenniferYeh +4 more
doaj +1 more source
Quasi-cyclic Generalized LDPC codes with low error floors [PDF]
, 2008 In this paper, a novel methodology for designing structured generalized LDPC (G-LDPC) codes is presented. The proposed design results in quasi-cyclic G-LDPC codes for which efficient encoding is feasible through shift-register-based circuits.
Ryan, William E. +6 more
core +1 more source
Iridium-Catalyzed Enantioselective Allylic Substitution with Aqueous Solutions of Nucleophiles [PDF]
, 2019 The iridium-catalyzed asymmetric allylic substitution under biphasic conditions is reported. This approach allows the use of various unstable and/or volatile nucleophiles including hydrazines, methylamine, t-butyl hydroperoxide, N-hydroxylamine, α ...
Friedrich Wieland, Goetzke +7 more
core +1 more source
PLoS ONE, 2013 The STING (stimulator of interferon genes) protein can bind cyclic dinucleotides to activate the production of type I interferons and inflammatory cytokines.
Guanghui Yi +5 more
doaj +1 more source