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Dahiya A, Ali W, Alam T, Patel BK. A cascade synthesis of S-allyl benzoylcarbamothioates via Mumm-type rearrangement. Org Biomol Chem 2018; 16:7787-7791. [PMID: 30324952 DOI: 10.1039/c8ob02293c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalyst and solvent free synthesis of S-allyl benzoylcarbamothioates has been achieved from the in situ generated benzoylcarbonimidothioates obtained by reacting MBH alcohols with aroyl isothiocyanates. An intramolecular thia-Michael addition of the in situ generated adduct triggers a Mumm-type rearrangement leading to a stereoselective synthesis of highly functionalised S-allyl benzoylcarbamothioates.
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Affiliation(s)
- Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, 781 039, Assam, India.
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New facile one-pot synthesis of S-alkyl thiolcarbamates from xanthogenate in water. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1083-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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3
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Minville J, Girardin M, Spino C. Efficient preparation of chiral non-racemic sulfur compounds. CAN J CHEM 2007. [DOI: 10.1139/v07-091] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
p-Menthane-3-carboxaldehyde serves as an efficient chiral auxiliary in the preparation of chiral non-racemic S-alkylthiocarbamates or S-dithiocarbonates via the 3,3-sigmatropic rearrangement of the corresponding alkylthionocarbamates or xanthates. The transfer of chirality during rearrangement is complete, and the final products possess a chiral tertiary or quaternary carbon bearing sulfur. The rearranged products are then transformed into enantiopure cyclic or acyclic sulfur-containing products, depending on the means of clivage of the auxiliary. The synthesis of a potent MMP-13 inhibitor is presented.Key words: 3,3-sigmatropic rearrangement, p-menthane-3-carboxaldehyde, S-alkylthiocarbamate, S-dithiocarbonate, alkylthionocarbamate, xanthate, ring-closing metathesis.
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Shah STA, Khan KM, Hussain H, Hayat S, Voelter W. CsF-Celite, an Efficient Solid State Reagent for the Syntheses of Thioesters and Thioethers. MONATSHEFTE FUR CHEMIE 2005. [DOI: 10.1007/s00706-005-0351-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mispelaere-Canivet C, Spindler JF, Perrio S, Beslin P. Pd2(dba)3/Xantphos-catalyzed cross-coupling of thiols and aryl bromides/triflates. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.078] [Citation(s) in RCA: 153] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Peñéñory A, Argüello J, Puiatti M. Novel Model Sulfur Compounds as Mechanistic Probes for Enzymatic and Biomimetic Oxidations. European J Org Chem 2004. [DOI: 10.1002/ejoc.200400382] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lüssem BJ, Gais HJ. Palladium-Catalyzed Enantioselective Allylic Alkylation of Thiocarboxylate Ions: Asymmetric Synthesis of Allylic Thioesters and Memory Effect/Dynamic Kinetic Resolution of Allylic Esters. J Org Chem 2004; 69:4041-52. [PMID: 15176829 DOI: 10.1021/jo049756x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed allylic alkylation of KSAc and KSBz with racemic cyclic and acyclic allylic esters by using N,N'-(1R,2R)-1,2-cyclohexandiylbis[2-(diphenylphosphino)-benzamide] as ligand frequently gave the corresponding allylic thioesters with high ee values and yields. The reaction of the cyclic allylic carbonates with KSAc in the presence of H(2)O was accompanied by a partial palladium-catalyzed enantioselective "hydrolysis" of the substrates with formation of the corresponding enantioenriched allylic alcohols. The degree of the "hydrolysis" was strongly dependent on the solvent and the thiocarboxylate ion. Highly selective kinetic resolutions (KRs) were observed in the palladium-catalyzed reaction of the racemic cyclohexenyl and cycloheptenyl acetates with KSAc. While the KR of the cyclohexenyl acetate is characterized by a selectivity factor S = 72 +/- 19, that of the cycloheptenyl acetate afforded (R)-cycloheptenyl acetate of >or=99% ee in 48% yield and (S)-cycloheptenyl thioacetate of 98% ee in 50% yield. The palladium-catalyzed reaction of the racemic cyclopentenyl acetate with KSAc showed a strong "memory effect" (ME), that is, both enantiomers reacted with different enantioselectivities. The ME was probed by studying the palladium-catalyzed reactions of both the matched acetate of >or=99% ee and the mismatched acetate of >or=99% ee with KSAc. The acetates not only reacted with different enantioselectivities and rates but also suffered an unexpected and concomitant palladium-catalyzed racemization in the presence of the chiral ligand. This led in the case of the mismatched acetate to a temporary dynamic kinetic resolution (DKR) that featured a racemization of the mismatched acetate by the chiral catalyst. Studies of the palladium-catalyzed reaction of the racemic cyclopentenyl acetate, carbonate, and naphthoate with KSAc in the presence of the chiral ligand also showed the ME to be strongly dependent on the nucleofuge. This also allowed the synthesis of (S)-cyclopentenyl thioacetate of 92% ee in high yield from the racemic cyclopentenyl naphthoate.
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Affiliation(s)
- Bernhard J Lüssem
- Institut für Organische Chemie der Rheinisch-Westfälischen Technischen Hochschule (RWTH) Aachen, Prof.-Pirlet-Str. 1, 52056 Aachen, Germany
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Koketsu M, Kobayashi C, Ishihara H. Synthesis ofN-arylS-alkylthiocarbamates. HETEROATOM CHEMISTRY 2003. [DOI: 10.1002/hc.10163] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Cacchi S, Fabrizi G, Goggiamani A, Parisi LM. Unsymmetrical diaryl sulfones through palladium-catalyzed coupling of aryl iodides and arenesulfinates. Org Lett 2002; 4:4719-21. [PMID: 12489970 DOI: 10.1021/ol0271887] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] The palladium-catalyzed coupling of aryl iodides and arenesulfinates provides a simple and extremely efficient new route to unsymmetrical diaryl sulfones, usually isolated in high yield. The reaction tolerates a variety of functionalized aryl iodides, including those containing ether, ester, and nitro groups. The best results have been obtained by using Pd(2)(dba)(3), Xantphos, Cs(2)CO(3), and (n)Bu(4)NCl in toluene at 80 degrees C.
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Affiliation(s)
- Sandro Cacchi
- Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi La Sapienza, P. le A. Moro 5, 00185 Rome, Italy.
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Shah STA, Khan KM, Martinez Heinrich A, Voelter W. An alternative approach towards the syntheses of thioethers and thioesters using CsF–Celite in acetonitrile. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)02028-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Marr F, Fröhlich R, Wibbeling B, Diedrich C, Hoppe D. The Synthesis and Configurational Stability of Enantioenriched α-Thioallyllithium Compounds and the Stereochemical Course of Their Electrophilic Substitution. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200209)2002:17<2970::aid-ejoc2970>3.0.co;2-j] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nicolaou KC, Baran PS, Zhong YL, Sugita K. Iodine(V) reagents in organic synthesis. Part 1. Synthesis of polycyclic heterocycles via Dess-Martin periodinane-mediated cascade cyclization: generality, scope, and mechanism of the reaction. J Am Chem Soc 2002; 124:2212-20. [PMID: 11878975 DOI: 10.1021/ja012124x] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The scope, generality, and mechanism of the Dess-Martin periodinane-mediated cyclization reaction of unsaturated anilides discovered during the total synthesis of the CP-molecules (phomoidrides A and B) are delineated. A plethora of heterocyclic compounds are accessible by employing gamma,delta-unsaturated amides (derived from anilines and carboxylic acids), urethanes, or ureas (derived from isocyanates and allylic alcohols and amines) as substrates. Optimization of the reaction led to room-temperature conditions, while isotope labeling studies allowed a mechanistic rationale for this cascade reaction.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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Nicolaou KC, Baran PS, Zhong YL, Barluenga S, Hunt KW, Kranich R, Vega JA. Iodine(V) reagents in organic synthesis. Part 3. New routes to heterocyclic compounds via o-iodoxybenzoic acid-mediated cyclizations: generality, scope, and mechanism. J Am Chem Soc 2002; 124:2233-44. [PMID: 11878977 DOI: 10.1021/ja012126h] [Citation(s) in RCA: 228] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The discovery and development of the o-iodoxybenzoic acid (IBX) reaction with certain unsaturated N-aryl amides (anilides) to form heterocycles are described. The application of the method to the synthesis of delta-lactams, cyclic urethanes, hydroxy amines, and amino sugars among other important building blocks and intermediates is detailed. In addition to the generality and scope of this cyclization reaction, this article describes a number of mechanistic investigations suggesting a single electron transfer from the anilide functionality to IBX and implicating a radical-based mechanism for the reaction.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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Gais HJ, Böhme A. Palladium(0)-catalyzed enantioselective O,S-rearrangement of racemic O-allylic thiocarbamates: a new entry to enantioenriched allylic sulfur compounds. J Org Chem 2002; 67:1153-61. [PMID: 11846656 DOI: 10.1021/jo010668b] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of (+/-)-(E)-pent-3-en-2-ol, (+/-)-(E)-hept-4-en-3-ol, (+/-)-(E)-2,6-dimethylhept-4-en-3-ol, (+/-)-cyclohex-2-en-1-ol, and (+/-)-cyclohept-2-en-1-ol with methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, and benzyl isothiocyanate gave the corresponding racemic O-allylic thiocarbamates of medium to good thermal stability in good yields. The palladium(0)-catalyzed rearrangement of the (+/-)-(E)-pent-3-en-2-ol-, (+/-)-(E)-hept-4-en-3-ol-, (+/-)-cyclohex-2-en-1-ol-, and (+/-)-cyclohept-2-en-1-ol-derived O-allylic thiocarbamates at room temperature in methylene chloride by using Pd2(dba)3*CHCl3 (dba = dibenzylideneacetone) as precatalyst and (+)-(1R,2R)-1,2-bis-N-((2-(diphenylphosphino)benzoyl)-1,2-diaminocyclohexane as ligand for the palladium atom proceeded quantitatively and gave the corresponding acyclic (R)-configured S-allylic thiocarbamates and the cyclic (S)-configured S-allylic thiocarbamates with ee values ranging from 85% to > or = 99% in yields of 76-94%. Rearrangement of the O-allylic thiocarbamates carrying a methyl group at the N atom not only was the fastest but also proceeded with the highest enantioselectivity. No rearrangement was observed under these conditions in the case of the racemic N-methyl O-allylic thiocarbamate derived from (+/-)-2,6-dimethylhept-4-en-3-ol, which has a branched carbon skeleton. (S)-cyclohex-2-enethiol of 97% ee was obtained through hydrolysis of the corresponding N-methyl S-allylic thiocarbamate. 2-((R)-(E)-1-methylbut-2-enylsulfanyl)pyrimidine of 91% ee and 2-((S)-cyclohex-2-enylsulfanyl)pyrimidine of 97% ee were synthesized in one synthetic operation from the corresponding N-methyl S-allylic thiocarbamates and 2-chloropyrimidine. Similarly, (S)-cyclohex-2-enylsulfanyl)benzene of 97% ee was obtained in one synthetic operation from the corresponding N-methyl S-allylic thiocarbamate through a palladium(0)-catalyzed substitution of iodobenzene in the presence of a base. The palladium(0)-catalyzed enantioselective rearrangement of O-allylic carbamates to S-allylic carbamates has been extended from the solution phase to the solid phase by using a methyl thioisocyanate polystyrene resin. In the case investigated the enantioselectivity of the rearrangement on the solid phase was considerably lower than that in solution.
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Affiliation(s)
- Hans-Joachim Gais
- Institut für Organische Chemie der Rheinisch-Westfälischen Technischen Hochschule Aachen, Professor-Pirlet-Strasse 1, D-52056 Aachen, Germany.
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Marr F, Fröhlich R, Hoppe D. A Highly Enantioenriched, Configurationally Stable α-Thioallyllithium Compound and the Stereochemical Course of Its Electrophilic Alkylation. Org Lett 1999. [DOI: 10.1021/ol991134o] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Felix Marr
- Organisch-chemisches Institut der Universität, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-chemisches Institut der Universität, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Dieter Hoppe
- Organisch-chemisches Institut der Universität, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
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Böhme A, Gais HJ. Palladium(0) catalyzed enantioselective rearrangement of O-allylic thiocarbamates to S-allylic thiocarbamates: asymmetric synthesis of allylic thiols. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00263-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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