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cyclobutanones (272) 272
chemistry, organic (239) 239
chemistry, multidisciplinary (138) 138
cyclobutanone (138) 138
ketones (89) 89
derivatives (63) 63
index medicus (55) 55
chemistry (51) 51
organic-synthesis (51) 51
catalysis (49) 49
cyclization (47) 47
cycloaddition (46) 46
oxidation (44) 44
cleavage (43) 43
lactones (42) 42
activation (40) 40
chemistry, physical (40) 40
rearrangement (40) 40
baeyer-villiger oxidation (37) 37
3-substituted cyclobutanones (36) 36
olefins (35) 35
complexes (32) 32
hydrogen-peroxide (31) 31
ring expansion (31) 31
stereoisomerism (31) 31
asymmetric-synthesis (30) 30
research (30) 30
rhodium (30) 30
asymmetric catalysis (29) 29
alkenes (28) 28
chemistry, applied (27) 27
palladium (26) 26
synthesis (25) 25
construction (24) 24
chemical properties (23) 23
cyclobutanone o-benzoyloximes (23) 23
molecular structure (23) 23
aldehydes (22) 22
alkynes (22) 22
cyclic-ketones (22) 22
dichloroketene (22) 22
ligands (22) 22
analogs (21) 21
c-c bond (21) 21
stereochemistry (21) 21
analysis (20) 20
baeyer-villiger reaction (20) 20
cycloadditions (20) 20
ketenes (20) 20
kinetic resolution (20) 20
acid (19) 19
carbon-carbon bonds (19) 19
enantiomers (19) 19
esters (19) 19
nitriles (19) 19
chemistry, inorganic & nuclear (18) 18
cyclobutanes - chemistry (18) 18
iminyl radicals (18) 18
ring-cleavage (18) 18
organic chemistry (17) 17
catalysts (16) 16
food science & technology (16) 16
organocatalysis (16) 16
acids (15) 15
baeyer–villiger oxidation (15) 15
c-c activation (15) 15
enantioselective synthesis (15) 15
insertion (15) 15
keteniminium salts (15) 15
letter (15) 15
alkylation (14) 14
fused cyclobutanones (14) 14
chemistry, medicinal (13) 13
food irradiation (13) 13
generation (13) 13
hydrogen peroxide (13) 13
lewis acid (13) 13
oxidation-reduction (13) 13
2-dodecylcyclobutanone (12) 12
article (12) 12
cyclopropanes (12) 12
fragmentation (12) 12
photochemistry (12) 12
ring (12) 12
usage (12) 12
alkene (11) 11
biochemistry & molecular biology (11) 11
molecular-oxygen (11) 11
rearrangements (11) 11
regioselectivity (11) 11
stereoselective-synthesis (11) 11
strategy (11) 11
structure (11) 11
transformations (11) 11
2-alkylcyclobutanones (10) 10
access (10) 10
arylation (10) 10
asymmetrische katalyse (10) 10
carbon (10) 10
chemical reactions (10) 10
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Chemical Society Reviews, ISSN 0306-0012, 09/2011, Volume 40, Issue 9, pp. 4539 - 4549
Chiral phosphoric acids and derivatives have attracted considerable attention as a powerful tool in asymmetric catalysis. Various enantioselective reactions... 
MUKAIYAMA-ALDOL | BAEYER-VILLIGER REACTION | PHOSPHORIC-ACID | NAZAROV CYCLIZATION | HETERO-DIELS-ALDER | ALDEHYDES | CATALYST | FRIEDEL-CRAFTS ALKYLATION | CHEMISTRY, MULTIDISCIPLINARY | 3-SUBSTITUTED CYCLOBUTANONES | MICHAEL ADDITION
Journal Article
Chemical Communications, ISSN 1359-7345, 08/2015, Volume 51, Issue 83, pp. 15272 - 15275
An original synthetic protocol has been developed for the preparation of highly functionalized tryptamines from 2-hydroxycyclobutanone and secondary arylamines... 
ENANTIOSELECTIVE SYNTHESIS | DERIVATIVES | CHEMISTRY, MULTIDISCIPLINARY | INDOLES | ACCESS | CYCLOBUTANONES | ALKALOIDS
Journal Article
Chemical communications (Cambridge, England), ISSN 1359-7345, 10/2015, Volume 51, Issue 83, pp. 15272 - 15275
An original synthetic protocol has been developed for the preparation of highly functionalized tryptamines from 2-hydroxycyclobutanone and secondary arylamines... 
Journal Article
by Xia, PJ and Ye, ZP and Hu, YZ and Song, D and Xiang, HY and Chen, XQ and Yang, H
ORGANIC LETTERS, ISSN 1523-7060, 04/2019, Volume 21, Issue 8, pp. 2658 - 2662
A photoinduced, phosphoranyl radical-mediated protocol for the direct N-O cleavage of strained cycloketone oximes via a polar/SET crossover process was... 
ALKENES | BETA-SCISSION | NITRILES | CHEMISTRY, ORGANIC | IMINYL RADICALS | THIYL RADICALS | ALPHA | CARBON RADICALS | GENERATION | ALKOXY | CYCLOBUTANONES
Journal Article
ACS Catalysis, ISSN 2155-5435, 04/2013, Volume 3, Issue 4, pp. 513 - 520
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 01/2018, Volume 57, Issue 3, pp. 738 - 743
A room‐temperature, visible‐light‐driven N‐centered iminyl radical‐mediated and redox‐neutral C−C single bond cleavage/radical addition cascade reaction of... 
iminyl radicals | photoredox catalysis | N-centered radicals | nitriles | heterocycles | ORGANIC-SYNTHESIS | NITROGEN-CENTERED RADICALS | CHEMISTRY, MULTIDISCIPLINARY | UNACTIVATED ALKENES | FUNCTIONALIZATION | ACID-DERIVATIVES | ELECTRON-TRANSFER | H BONDS | GENERATION | CYCLOBUTANONES | Nitriles | Esters | Carbon-carbon composites | Oximes | Oxime esters | Alkenes | Ketones | Chemical bonds | Cleavage | Cascade chemical reactions | Ethers | Alkynes
Journal Article
Organic Letters, ISSN 1523-7060, 07/2016, Volume 18, Issue 14, pp. 3334 - 3337
A rhodium-catalyzed cross-coupling of aryl and aliphatic quinolinyl ketones with boronic acids has been developed. Proceeding via quinoline-directed... 
INSERTION | CARBOACYLATION | DIRECTED CLEAVAGE | TRANSMETALATION | CHEMISTRY, ORGANIC | BETA-ARYL ELIMINATION | CARBON-CARBON BONDS | EXCHANGE | CENTERS | CYCLOBUTANONES
Journal Article
by Zhou, Y and Wang, Y and Lou, YX and Song, QL
ORGANIC LETTERS, ISSN 1523-7060, 11/2019, Volume 21, Issue 22, pp. 8869 - 8873
We disclose a novel Cu-catalyzed denitrogenative transannulation of 3-aminoindazoles to afford diverse functionalized 3-aminobenzothiophenes and... 
BENZOTRIAZOLES | ALKENES | ISOQUINOLINES | ANNULATION | CONSTRUCTION | REGIOSELECTIVE SYNTHESIS | CHEMISTRY, ORGANIC | ALKYNE INSERTION | BOND | CYCLOBUTANONES | H ACTIVATION
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 02/2018, Volume 140, Issue 8, pp. 2743 - 2747
A modular Rh-catalyzed entry to azepines is outlined. Under a CO atmosphere, protecting group directed C–C bond activation of aminocyclo­propanes provides... 
RHODACYCLOPENTANONES | COMPLEXES | AMINO-SUBSTITUTED CYCLOPROPANES | CARBON-CARBON | 3+1+2 CYCLOADDITIONS | REDUCTIVE ELIMINATION | DERIVATIVES | CHEMISTRY, MULTIDISCIPLINARY | CYCLOBUTANONES | Communication
Journal Article
Organic Letters, ISSN 1523-7060, 11/2008, Volume 10, Issue 22, pp. 5219 - 5221
3-(2-Hydroxyphenyl)cyclobutanones react with aryl bromides in the presence of palladium catalysts to afford 4-arylmethyl-3,4-dihydrocoumarins in high yields... 
KETONES | INSERTION | ACIDS | CHEMISTRY, ORGANIC | ELIMINATION | CLEAVAGE | DERIVATIVES | CYCLOBUTANONES | ALKALOIDS
Journal Article
Organic Letters, ISSN 1523-7060, 07/2012, Volume 14, Issue 14, pp. 3656 - 3659
The oxidation of alkyl and aryl aldehydes to their corresponding carboxylic acids has been achieved through the action of a biomimetic bridged flavin catalyst.... 
BAEYER-VILLIGER REACTION | DECOMPOSITION | CHEMISTRY, ORGANIC | HYDROPEROXIDES | AMINE | SALTS | CYCLOBUTANONES | PEROXIDE | SULFIDE
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 2019, Volume 141, Issue 6, pp. 2731 - 2738
Electrochemical C-C activations were accomplished by expedient oxidative rhodium(III) catalysis. Thus, oxidative C-C alkenylations proved viable with the aid... 
H FUNCTIONALIZATION | ACTIVATION | MECHANISM | CARBON-CARBON BONDS | METAL | ARYL | CLEAVAGE | EXCHANGE | CHEMISTRY, MULTIDISCIPLINARY | CYCLOBUTANONES | STRATEGIES | Index Medicus
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 01/2020, Volume 61, Issue 3, p. 151387
[Display omitted] •Formal [4+4] cycloaddition of 3-ethoxycyclobutanones and siloxydienes.•Effects of substituents for selective [4+4] cycloaddition.•Mechanism... 
Cyclooctene | Silyloxydiene | Cyclobutanones | [4+4] cycloaddition | ANNULATION | STRATEGY | CHEMISTRY, ORGANIC | PHOTODIMERIZATION | CLEAVAGE | RING | TAXOL | CONSTRUCTION | DACTYLOL | 3-ETHOXYCYCLOBUTANONES | ANTHRACENES
Journal Article
Organic Letters, ISSN 1523-7060, 02/2018, Volume 20, Issue 4, pp. 1034 - 1037
An efficient synthesis of cyanoalkylated heteroarenes via iron-catalyzed direct C–H cyanoalkylation of heteroarenes has been developed. Structurally diverse... 
ALLYLIC ALCOHOLS | CYCLOBUTANONE O-BENZOYLOXIMES | EFFICIENT SYNTHESIS | CHEMISTRY, ORGANIC | QUINOXALINONE DERIVATIVES | ALKYL NITRILES | IMINYL RADICALS | INHIBITORS | RING-CLEAVAGE | OXIME ESTERS | UNACTIVATED ALKENES
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 10/2016, Volume 138, Issue 41, pp. 13501 - 13504
Under carbonylative conditions, neutral Rh(I)-systems modified with weak donor ligands (AsPh3 or 1,4-oxathiane) undergo N-Cbz, N-benzoyl, or N-Ts directed... 
RHODACYCLOPENTANONES | CARBOCYCLIZATION | COMPLEXES | CHEMISTRY | AMINO-SUBSTITUTED CYCLOPROPANES | CHEMISTRY, MULTIDISCIPLINARY | CYCLOBUTANONES | Usage | Chemical properties | Rhodium | Chemical synthesis | Carbon compounds | Communication
Journal Article
Organic Letters, ISSN 1523-7060, 03/2017, Volume 19, Issue 5, pp. 1044 - 1047
The first enantioselective catalytic 1,2-hydroperoxidation has been achieved in the presence of PEG-600 using an acid–base bifunctional chiral squaramide as... 
OPTICALLY-ACTIVE HYDROPEROXIDE | BAEYER-VILLIGER REACTION | ALPHA,BETA-UNSATURATED KETONES | ALLYLIC ALCOHOLS | ENANTIOSELECTIVE HYDROGENATION | BIFUNCTIONAL CATALYST | CHEMISTRY, ORGANIC | ARTEMISININ QINGHAOSU | RACEMIC HYDROPEROXIDES | 3-SUBSTITUTED CYCLOBUTANONES | MICHAEL ADDITION
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 10/2007, Volume 129, Issue 40, pp. 12086 - 12087
3,4-Dihydrocoumarin derivatives were synthesized in a highly enantioselective manner from 3-(2-hydroxyphenyl)cyclobutanones through enantioselective... 
C BOND-CLEAVAGE | PALLADIUM | ACTIVATION | 1,4-MIGRATION | RING-EXPANSION | BETA-CARBON ELIMINATION | 1,4-ADDITION | ALKYNES | CHEMISTRY, MULTIDISCIPLINARY | CYCLOBUTANONES | CYCLIZATION | Cyclic hydrocarbons | Chemical bonds | Coumarins | Research | Chemical properties | Rhodium
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 02/2017, Volume 139, Issue 4, pp. 1416 - 1419
Despite advances in methods for the decarbonylation of aldehydes, the decarbonylation of ketones has been met with limited success because this process... 
ORGANIC-SYNTHESIS | ACTIVATION | INTERMOLECULAR ALKYNE INSERTION | TRANSITION-METAL-COMPLEXES | TEMPERATURE | C-C BOND | CATALYZED DECARBONYLATION | SINGLE BONDS | CHEMISTRY, MULTIDISCIPLINARY | CONJUGATED YNONES | CYCLOBUTANONES
Journal Article
Tetrahedron, ISSN 0040-4020, 06/2012, Volume 68, Issue 22, pp. 4145 - 4151
Baeyer–Villiger oxidation of cyclobutanones is achieved in current developed protocol with 10-methylacridinium perchlorate (AcrH+ClO4−) as a novel... 
Hydrogen peroxide | Baeyer–Villiger oxidation | Cyclobutanones | Organocatalysis | Lactones | Baeyer-Villiger oxidation | COMPLEXES | PHOTOCATALYTIC OXIDATION | CHEMISTRY, ORGANIC | ION | GAMMA-LACTONES | 3-SUBSTITUTED CYCLOBUTANONES | BENZYL ALCOHOL | MONOOXYGENASES | KETONES | HYDROGEN-PEROXIDE | MOLECULAR-OXYGEN | Oxidation-reduction reaction
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 12/2019, Volume 58, Issue 51, pp. 18405 - 18409
Cyclobutane rings are important in medicinal chemistry, yet few enantioselective methods exist to access this scaffold. In particular, cyclobutylboronates are... 
conjugate borylation | cyclobutylboronates | asymmetric catalysis | cyclobutanones | cyclobutenones | Stereoselectivity | Organic chemistry | Screening | Conjugates | Aromatic compounds | Esters | Ligands | Cyclobutane | Enantiomers | Scaffolds | Substrates | Rings (mathematics)
Journal Article
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