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alpha-hydrazino acids (58) 58
chemistry, organic (50) 50
amino-acids (29) 29
derivatives (26) 26
asymmetric-synthesis (22) 22
amination (21) 21
electrophilic amination (20) 20
amino (15) 15
chemistry, multidisciplinary (15) 15
chemistry (14) 14
alpha-hydrazino (11) 11
stereoselective amination (11) 11
azodicarboxylate (10) 10
peptides (10) 10
research (8) 8
esters (7) 7
high optical purity (7) 7
organic chemistry (7) 7
analysis (6) 6
route (6) 6
chemistry/food science, general (5) 5
inorganic chemistry (5) 5
[tetraphthalocyanine]aluminum chloride (4) 4
aldehydes (4) 4
alpha-hydrazino phosphonates (4) 4
amines (4) 4
amino acids (4) 4
aminophosphonates (4) 4
catalysis (4) 4
hydrazones (4) 4
k ee chemistry, organic (4) 4
ketones (4) 4
model dipeptides (4) 4
the pudovik reaction (4) 4
α-hydrazino phosphonates (4) 4
acids (3) 3
analogs (3) 3
azapeptides (3) 3
beta-hydroxyesters (3) 3
biochemistry & molecular biology (3) 3
crystal-structure (3) 3
design (3) 3
enantioselective amination (3) 3
enantioselective synthesis (3) 3
fields reaction (3) 3
helical secondary structure (3) 3
index medicus (3) 3
k dy chemistry (3) 3
molecular structure (3) 3
nitrogen (3) 3
nucleophilic-reagents (3) 3
organophosphorus compounds (3) 3
oxaziridines (3) 3
oxidation (3) 3
phosphonates (3) 3
reagents (3) 3
synthesis (3) 3
transformation (3) 3
α-hydrazino acids (3) 3
-2,3,4,5-tetrahydropyridazine-3-carboxylic acid (2) 2
3-component synthesis (2) 2
4+2 cyclo-addition (2) 2
[ chim.orga ] chemical sciences/organic chemistry (2) 2
acid (2) 2
actinomadura-luzonensis (2) 2
acylhydrazones (2) 2
alcohols (2) 2
alkenes (2) 2
alkylation (2) 2
alpha-hydrazinophosphonates (2) 2
antibiotics (2) 2
antrimycin-dv (2) 2
aza-beta-peptides (2) 2
azo (2) 2
backbone modifications (2) 2
bbm-928-a (2) 2
benzotriazole (2) 2
butyl-n-tosyloxycarbamate (2) 2
catalysts (2) 2
chemical reactions (2) 2
chemical sciences (2) 2
chemical synthesis (2) 2
conformational analysis (2) 2
crystal-structures (2) 2
cyclic pseudopentapeptide (2) 2
derivatives thereof (2) 2
efficient synthesis (2) 2
enantiomers (2) 2
ene (2) 2
enzyme-inhibitors (2) 2
general-approach (2) 2
glycals (2) 2
hydrazino peptides (2) 2
hydrazino phosphonates (2) 2
hydrazones - chemistry (2) 2
hydrogenation (2) 2
imines (2) 2
inhibitor (2) 2
inhibitors (2) 2
lithium perchlorate/diethyl ether (2) 2
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Chemical Society Reviews, ISSN 0306-0012, 05/2014, Volume 43, Issue 10, pp. 3575 - 3594
Journal Article
Synthetic Communications, ISSN 0039-7911, 09/2014, Volume 44, Issue 17, pp. 2510 - 2519
Synthesis of cyclic α -hydrazino acids of five- to nine-membered rings has been described. Di-tert-butyl or dibenzyl malonate was used as starting materials... 
malonates | Cyclic | aza proline | hydrazino acids | (S)/(R) | (S)/(R)-1,2-diazepane-3-carboxylic acid | (S)/(R)-piperazic acid | Cyclic α -hydrazino acids | (S)/(R)- δ -aza proline | ASYMMETRIC-SYNTHESIS | Cyclic alpha-hydrazino acids | EFFICIENT SYNTHESIS | CHEMISTRY, ORGANIC | (S)/(R)-delta-aza proline | PIPERAZIMYCIN | AMINO-ACIDS | PROGRESS | INHIBITOR | DERIVATIVES
Journal Article
Tetrahedron, ISSN 0040-4020, 09/2012, Volume 68, Issue 39, pp. 8347 - 8357
Synthesis of five-, six-, seven-, eight-, and nine-membered cyclic α-hydrazino acids from a common starting material ‘diethylmalonate’ with 26, 16, 34, 13.5,... 
Piperazic acid | Delta aza-proline | Unnatural amino acids | Diethylmalonate | α-Hydrazino acids | ASYMMETRIC-SYNTHESIS | AZAPROLINE | CHEMISTRY, ORGANIC | PIPERAZIMYCIN | IMPACT | PEPTIDES | AMINO-ACIDS | alpha-Hydrazino acids | PROGRESS | INHIBITOR | DERIVATIVES
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 08/2016, Volume 57, Issue 34, pp. 3858 - 3861
[Display omitted] •Synthesis of cyclic α-hydrazino acid-containing peptides.•Selective protection at the δ-nitrogen with Cbz and peptide chain elongation at... 
Tripeptides | Digestive enzymes | Peptidase stability | α-Hydrazino acids | LC–MS analysis | THERAPEUTICS | CHEMISTRY, ORGANIC | MOLECULES | POTENT | LC-MS analysis | AMINO-ACIDS | alpha-Hydrazino acids | CYSTEINE PROTEASES | AZAPEPTIDES | ENZYME-INHIBITORS
Journal Article
Organic Letters, ISSN 1523-7060, 08/1999, Volume 1, Issue 4, pp. 595 - 598
[Cu(S,S)-t-Bu-box](OTf)2 (1) catalyzes the enantioselective amination of enolsilanes with azodicarboxylate derivatives. Isomerically pure enolsilanes of aryl... 
AZODICARBOXYLATE | DIELS-ALDER | ASYMMETRIC-SYNTHESIS | ENOL ETHERS | CYCLO-ADDITION REACTION | AMINO-ACIDS | STEREOSELECTIVE AMINATION | CHEMISTRY, ORGANIC | ALPHA-HYDRAZINO ACIDS | ELECTROPHILIC AMINATION | DERIVATIVES
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 05/2012, Volume 53, Issue 18, pp. 2292 - 2294
Terminal tert-butyloxycarbonyl (Boc) protected hydrazino acids, useful intermediates for modified peptides and biologically active heterocyclic derivatives,... 
Electrophilic N-amination | Azapeptides | N-Boc-O-tosyl hydroxylamine | β-Boc-hydrazino esters | β-Boc-hydrazino acids | Modified amino acids | ROUTE | CHEMISTRY, ORGANIC | beta-Boc-hydrazino acids | ALPHA-HYDRAZINO ACIDS | beta-Boc-hydrazino esters | HIGH OPTICAL PURITY | Amino acids | Hydroxides | Peptides | Tetrahedrons | Esters | Terminals | Derivatives | Conversion | Alcohols
Journal Article
The Journal of Organic Chemistry, ISSN 0022-3263, 09/2017, Volume 82, Issue 18, pp. 9765 - 9772
Oxaziridine-based redox sulfur imidation provides a breakthrough strategy for selective modification at methionine in proteins. The chemoselectivity of... 
KETOMALONATE-DERIVED OXAZIRIDINE | DENSITY FUNCTIONALS | SITE-SPECIFIC MODIFICATION | AMINO-ACIDS | PROTEIN MODIFICATION | CHEMISTRY, ORGANIC | ALPHA-HYDRAZINO ACIDS | ELECTROPHILIC AMINATION | MEDIATED LIGATION | PEPTIDE HYDRAZIDES | BASIS-SETS | Chemical reactions | Iridium | Chemical properties | Research | Structure | Methionine
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 06/2019, Volume 2019, Issue 23, pp. 3806 - 3814
Journal Article
Tetrahedron, ISSN 0040-4020, 1996, Volume 52, Issue 1, pp. 279 - 290
The title compounds are prepared from the readily available enantiopure 6-alkyl- or 6-aryl-2- tert-butyl-6-trifluoromethyl-1,3-dioxan-4-ones with cis... 
AZODICARBOXYLATE | ASYMMETRIC-SYNTHESIS | HYDROGENATION | BETA-HYDROXYCARBOXYLIC ACIDS | AMINO-ACIDS | ENANTIOSELECTIVE SYNTHESES | CHEMISTRY, ORGANIC | ALPHA-HYDRAZINO ACIDS | ELECTROPHILIC AMINATION | HIGH OPTICAL PURITY | ACETOACETIC ESTER D4-REAGENT
Journal Article
Organic Letters, ISSN 1523-7060, 01/2004, Volume 6, Issue 2, pp. 153 - 155
The asymmetric addition of HCN to hydrazones is catalyzed in high yield and good-to-excellent enantioselectivity by the easily prepared (PhPYBOX)ErCl3 complex.... 
ACYLHYDRAZONES | INHIBITION | AMINO-ACIDS | PURIFICATION | ALLYLATION | CHEMISTRY, ORGANIC | ALPHA-HYDRAZINO ACIDS | ELECTROPHILIC AMINATION | EXTENSION | MANNICH-TYPE | AMMONIA-LYASE | Molecular Structure | Lanthanoid Series Elements - chemistry | Catalysis | Hydrogen Cyanide - chemistry | Hydrazones - chemistry
Journal Article
Tetrahedron, ISSN 0040-4020, 1996, Volume 52, Issue 3, pp. 1047 - 1068
In response to a recent literature report by Decicco and Leathers (Ref. 13), the work of Hale, Delisser, and Manaviazar (1992) on the asymmetric synthesis of... 
ASYMMETRIC-SYNTHESIS | ANTAGONIST | ANGIOTENSIN CONVERTING ENZYME | (3S)-2,3,4,5-TETRAHYDROPYRIDAZINE-3-CARBOXYLIC ACID | AMINO | ALPHA-HYDRAZINO | STEREOSELECTIVE AMINATION | CHEMISTRY, ORGANIC | AZINOTHRICIN | CARBOXYLIC-ACID | DERIVATIVES
Journal Article
Tetrahedron, ISSN 0040-4020, 06/2012, Volume 68, Issue 24, pp. 4682 - 4692
Different α-hydrazinoesters with high optical purity have been obtained in large scale via an SN2 protocol. A coupling reaction with a natural amino acid leads... 
Hydrazinoturn | 1:1 [α/α-Nα-Hydrazino]mers | α-Hydrazinoester | SN2 | Hydrazinopeptide | Pseudopeptide | 1:1 [α/α-N | 2 | S | Hydrazino]mers | DESIGN | alpha-Hydrazinoester | 1:1 [alpha/alpha-N-alpha-Hydrazino]mers | S(N)2 | STABILITY | CHEMISTRY, ORGANIC | PEPTIDES | AZA-BETA-PEPTIDES | HYDRAZINOACIDS | FOLDAMERS | AMINOXY ACIDS
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 03/2017, Volume 58, Issue 12, pp. 1216 - 1218
[Display omitted] •Low-cost method to obtain chiral hydrazino diesters on multi-gram scale.•Method involving two successive SN2 reactions.•Possibility of... 
α-Nα-hydrazino diester | Peptidomimetic | SN2 reaction | Pseudopeptide | hydrazino diester | 2 reaction | α-N | PEPTIDE FOLDAMERS | ACID | SERIES | AZA-BETA-CYCLOHEXAPEPTIDES | CHEMISTRY, ORGANIC | STATE | PSEUDOPEPTIDES | alpha-N-alpha-hydrazino diester | S(N)2 reaction | AZA-BETA-PEPTIDES | CONFORMATIONAL-ANALYSIS | Organic chemistry | Chemical Sciences
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 08/2004, Volume 43, Issue 31, pp. 4099 - 4102
Enhanced activity, lower catalyst loading, shorter reaction times, and expanded substrate scope are the advantages of [Mn(dpm)3] over Co catalysts in the... 
silanes | hydrazination | homogeneous catalysis | alkenes | manganese | Silanes | Hydrazination | Alkenes | Homogeneous catalysis | Manganese | III CATALYST | ASYMMETRIC-SYNTHESIS | ALPHA,BETA-UNSATURATED KETONES | AMINO | STEREOSELECTIVE AMINATION | ALPHA-HYDRAZINO ACIDS | MN(DPM) CATALYST | CHEMISTRY, MULTIDISCIPLINARY | ENANTIOSELECTIVE AMINATION | PHENYLSILANE | MOLECULAR-OXYGEN
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 07/1992, Volume 114, Issue 15, pp. 6266 - 6267
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 12/2003, Volume 2003, Issue 24, pp. 4757 - 4764
Alkylation reactions of hydrazine derivatives by Mitsunobu or PTC approaches are described. It has been shown that aminophthalimide derivatives are better... 
α‐Hydrazino acids | Phase‐transfer catalysis | Hydrazine derivatives | Protecting groups | Mitsunobu reaction | Phase-transfer catalysis | α-Hydrazino acids | SUBSTITUTED HYDRAZINES | REAGENT | TRANSFORMATION | ROUTE | alpha-hydrazino acids | protecting groups | hydrazine derivatives | PROTOCOL | CHEMISTRY, ORGANIC | phase-transfer catalysis
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 01/1998, Volume 120, Issue 1, pp. 80 - 86
N-Acyl derivatives of piperazic acids display an unusual degree of conformational rigidity. As a consequence, α-N-coupling of a piperazic acid of given... 
DESIGN | ASYMMETRIC-SYNTHESIS | PROTEIN | PEPTIDES | BBM-928-A | AMINO | STEREOSELECTIVE AMINATION | ALPHA-HYDRAZINO ACIDS | 4-HELIX BUNDLE | ACTINOMADURA-LUZONENSIS | CHEMISTRY, MULTIDISCIPLINARY | Research | Peptides | Piperazine | Analysis | Conformational analysis
Journal Article
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