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chemistry, organic (69) 69
dieckmann condensation (65) 65
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chemistry, multidisciplinary (18) 18
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chemistry (13) 13
esters (12) 12
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cycloaddition-dieckmann condensation (9) 9
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ynolate (4) 4
ynolates (4) 4
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European Journal of Organic Chemistry, ISSN 1434-193X, 10/2016, Volume 2016, Issue 28, pp. 4834 - 4841
A successful asymmetric total synthesis of (–)‐azaspirene has been accomplished by utilizing (3R)‐6‐cinnamyl‐3‐methyl‐3‐phenyl‐1,4‐dioxane‐2,5‐dione, a readily... 
Titanium | Claisen condensation | Asymmetric synthesis | Aldol reactions | Total synthesis | ROBUST METHOD | PSEUDEUROTIUM-OVALIS STOLK | CHEMISTRY, ORGANIC | POWERFUL | DIECKMANN CONDENSATION | PRELIMINARY COMMUNICATION | PSEUROTIN-A | ACID-CHLORIDES | ANGIOGENESIS INHIBITOR | STEREOCONTROLLED SYNTHESIS | CHIRAL TEMPLATE | Dioxane | Synthesis | Organic compounds
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 06/2019, Volume 2019, Issue 22, pp. 3553 - 3559
Novel spirocyclic pyrrolidines were synthesized in three steps from cyclic α‐amino acids with a 3‐ to 7‐membered cycle. The key transformation was the... 
Heterocycles | Dieckmann condensation | Drug design | Amines | Pyrrolidine | REAGENTS | BUILDING-BLOCKS | CHEMISTRY, ORGANIC | STEP | SCAFFOLDS | OXETANES
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 06/2018, Volume 59, Issue 26, pp. 2600 - 2603
[Display omitted] •Studies toward the total synthesis of pseudolaric acid B are described.•The quaternary stereocenter was constructed by a Claisen... 
Diterpenes | Dieckmann condensation | Trans-fused [5–7] ring system | Peudolaric acids | CHEMISTRY, ORGANIC | Trans-fused [5-7] ring system | Medicinal plants | Medicine, Herbal | Synthesis | Medicine, Botanic | Organic compounds
Journal Article
Tetrahedron, ISSN 0040-4020, 2011, Volume 67, Issue 14, pp. 2605 - 2611
A series of pulvinones were prepared in three steps from a common precursor, methyl 3-phenylglycidate. This compound was readily converted to several diesters... 
β-Elimination | Tetronic acid | Dieckmann condensation | Pulvinone | Epoxide | beta-Elimination | METABOLITES | FUNGI | CHEMISTRY, ORGANIC | ASPERGILLUS-TERREUS | PIGMENTS | DIOXOLANONES | ANTIOXIDANT PROPERTIES | TETRONIC ACIDS | BIOSYNTHESIS | DERIVATIVES | EFFICIENT | Synthesis (chemistry) | Precursors | Diesters | Tetrahedrons | Condensing | Lithium | Ethers
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 02/2018, Volume 24, Issue 7, pp. 1539 - 1543
Journal Article
Tetrahedron, ISSN 0040-4020, 2008, Volume 64, Issue 42, pp. 10009 - 10013
A novel four-step synthesis to the pyrrolo[2,1- c][1,4]benzodiazocine ring system is described. 1 H-Pyrrole-2-carbaldehyde was alkylated with ethyl or methyl... 
Pyrrolobenzodiazocine | Oxidation | Dieckmann condensation | Pyrroles | pyrrolobenzodiazocine | oxidation | CHEMISTRY, ORGANIC | pyrroles | DERIVATIVES | CYCLIZATION | Potassium compounds | Dichloropropane | Condensation | Chlorides | Organic compounds
Journal Article
Organic Letters, ISSN 1523-7060, 11/2006, Volume 8, Issue 23, pp. 5215 - 5218
A powerful Ti-crossed Claisen condensation between ketene silyl acetals (KSAs) and acid chlorides was successfully performed to give α-monoalkylated esters and... 
CHEMISTRY, ORGANIC | ESTERS | DIECKMANN CONDENSATION
Journal Article
Advanced Synthesis & Catalysis, ISSN 1615-4150, 07/2002, Volume 344, Issue 5, pp. 507 - 510
An efficient, practical, and stereocontrolled synthesis of (Z)‐civetone (1), a representative musk perfume, has been performed utilizing a Ti‐Dieckmann... 
Dieckmann condensation | civetone | macrocycles | Ti‐Claisen condensation | cyclization | titanium | Titanium | Civetone | Cyclization | Macrocycles | Ti-Claisen condensation | AGENT | CLAISEN CONDENSATION | ALDOL ADDITION | CHEMISTRY, ORGANIC | CHEMISTRY, APPLIED
Journal Article
Chemistry Letters, ISSN 0366-7022, 1/2007, Volume 36, Issue 1, pp. 48 - 49
Reductive Ti-crossed Claisen condensation between methyl α-bromocarboxylates and acid chlorides utilizing a TiCl4–PPh3–N-methylimidazole reagent proceeded... 
AGENT | ACYLATION | ESTERS | ALDOL ADDITION | DIECKMANN CONDENSATION | DERIVATIVES | CHEMISTRY, MULTIDISCIPLINARY
Journal Article
Tetrahedron, ISSN 0040-4020, 2002, Volume 58, Issue 7, pp. 1433 - 1441
Both N-methoxycarbonylmethyl- and N-methoxycarbonylethyl-derivatives of dihydroxy-( d)-homoproline were subjected to the intramolecular ester condensation to... 
indolizidines | Dieckmann condensation | δ-lactones | pyrrolizidines | Indolizidines | Pyrrolizidines | NATURAL LENTIGINOSINE | NITRONE CYCLOADDITION | ASYMMETRIC-SYNTHESIS | RING EXPANSION | ENANTIOSELECTIVE SYNTHESIS | DIPOLAR APROTIC MEDIA | CHEMISTRY, ORGANIC | BETA-KETO-ESTERS | delta-lactones | ALPHA-CYANO ESTERS | ABSOLUTE-CONFIGURATION | MALONATE ESTERS
Journal Article
Advanced Synthesis & Catalysis, ISSN 1615-4150, 08/2003, Volume 345, Issue 8, pp. 967 - 970
Journal Article
Chinese Journal of Chemistry, ISSN 1001-604X, 09/2018, Volume 36, Issue 9, pp. 831 - 836
A practical approach to the asymmetric synthesis of the ring A substructure of genkwadane A, a daphnane diterpenoid, was developed. This synthesis features the... 
sulfoxidation | Dieckmann‐type condensation | daphnane | genkwadane A | Mukaiyama aldol | Dieckmann-type condensation | OXIDATION | PHORBOL | TIGLIANE | CHEMISTRY, MULTIDISCIPLINARY | GENERAL STRATEGY | TRICYCLIC CORE | TUMOR PROMOTERS | ALPHA-SULFINYL CARBANIONS | DIELS-ALDER REACTION | DAPHNANE DITERPENOIDS | INTRAMOLECULAR ACYLATION | Synthesis | Organic compounds
Journal Article
Journal of Organic Chemistry, ISSN 0022-3263, 06/2015, Volume 80, Issue 11, pp. 5517 - 5531
Journal Article
Heterocycles, ISSN 0385-5414, 11/2008, Volume 76, Issue 2, pp. 1593 - 1606
Asymmetric Dieckmann condensation via memory of chirality has been developed. A key intermediate for the synthesis of AS-3201, an aldose reductase inhibitor,... 
Amino Acid | Axially Chiral Enolate | Diabetes | Dynamic Chirality | CHEMISTRY, ORGANIC
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 2004, Volume 45, Issue 5, pp. 997 - 999
Graphic The indoloquinazoline alkaloid rutaecarpine has been synthesized efficiently by employing 9,10,11,12-tetrahydro-4 H-pyrido[2,1- b]quinazoline-4,9-dione... 
Dieckmann condensation–decarboxylation | Indoloquinazoline alkaloid | Rutaecarpine | Dieckmann condensation- decarboxylation | indoloquinazoline alkaloid | Dieckmann condensation-decarboxylation | rutaecarpine | CHEMISTRY, ORGANIC | NITROGEN BRIDGEHEAD COMPOUNDS | QUINAZOLINOCARBOLINE ALKALOIDS | RUTECARPINE
Journal Article
Organic Letters, ISSN 1523-7060, 03/2017, Volume 19, Issue 6, pp. 1422 - 1425
A series of macrocycles were successfully prepared using electrophilic halogen-mediated semipinacol rearrangement under mild conditions. Although the expansion... 
RING-CLOSING METATHESIS | SOLID-PHASE SYNTHESIS | NATURAL-PRODUCTS | STRATEGY | RADICAL CYCLIZATION | DRUG DISCOVERY | EXPANSION | CHEMISTRY, ORGANIC | DIECKMANN CONDENSATION | HOMOLOGATION | DERIVATIVES
Journal Article