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Directed ortho metalation

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331: 161: 260: 218: 283: 730:. Co-complexes of ortho-dilithiated thiophenol or 2-trimethylsilylthiophenol with lithiated TMEDA molecules: synthesis, crystal structures and theoretical studies (TMEDA = N,N,N′,N′-tetramethylethylenediamine) Alexandra Hildebrand, Peter Lönnecke, Luminita Silaghi-Dumitrescu, Ioan Silaghi-Dumitrescu and Evamarie Hey-Hawkins 88: 613:
Directed ortho Metalation-Boronation and Suzuki-Miyaura Cross Coupling of Pyridine Derivatives: A One-Pot Protocol to Substituted Azabiaryls Manlio Alessi, Andrew L. Larkin, Kevin A. Ogilvie, Laine A. Green, Sunny Lai, Simon Lopez, and Victor Snieckus
682:. Ortho-Lithiothiophenol Equivalents: Generation, Reactions and Applications in Synthesis of Hindered Thiolate Ligands Eric Block, Venkatachalam Eswarakrishnan, Michael Gernon, Gabriel Ofori-Okai, Chantu Saha, Kaluo Tang, Jon Zubieta 666:
Directed ortho-lithiation of lithium thiophenolate. New methodology for the preparation of ortho-substituted thiophenols and related compounds Garret D. Figuly, Cynthia K. Loop, J. C. Martin
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Directed metallation is not limited to lithium intermediates or even to an ortho preference. In one study it is found that the reaction product of N,N-dimethylaniline with a complex of
495: 282: 655: 758: 355:(September 1990). "Directed ortho metalation. Tertiary amide and O-carbamate directors in synthetic strategies for polysubstituted aromatics". 160: 242: 139: 45: 234: 87: 259: 801: 31: 399: 217: 330: 312: 53: 308: 757:
David R. Armstrong, William Clegg, Sophie H. Dale, Eva Hevia, Lorna M. Hogg, Gordon W. Honeyman, Robert E. Mulvey
320: 785:. Selected bond lengths in 2: Zn-C bond 203.5 pm in plane with aryl plane, Na-C bond 269 pm at 76° to aryl plane 714:. 2-Phosphino- and 2-Phosphinyl-benzenethiols: New Ligand Types Eric Block, Gabriel Ofori-Okai and Jon Zubieta 591:
Contra-Friedel–Crafts tert-butylation of substituted aromatic rings via directed metallation and sulfinylation
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J. V. Hay And T. M. Harris "Dimethylamino-5-methylphenyl)diphenylcarbinol" Org. Synth. 1973, volume 53, 56.
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all the while maintaining the acid-base interaction. An electrophile reacts in the next phase in an
731: 579: 466:"Directed lithiation of simple aromatics and heterocycles for synthesis of substituted derivatives" 464:
El-Hiti, Gamal A.; Smith, Keith; Hegazy, Amany S.; Alshammari, Mohammed B.; Masmali, Ali (2015).
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Directed ortho metalation-boronation and Suzuki-Miyaura cross coupling of pyridine derivatives
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through the intermediary of an aryllithium compound. The DMG interacts with lithium through a
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Nicolas Le Fur, Ljubica Mojovic, Nelly Plé, Alain Turck, Vincent Reboul, and Patrick Metzner
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ortho-Metalation of Enantiopure Aromatic Sulfoxides and Stereocontrolled Addition to Imines
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show preference for both the ortho and para position, this reaction demonstrates increased
698:. Directed lithiation of arenethiols Keith Smith, Charles M. Lindsay, Gareth J. Pritchard 352: 323:
zincated complex as a stable crystalline compound. This complex reacts with electrophilic
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Gschwend, Heinz W.; Rodriguez, Herman R. (1979). "Heteroatom-Facilitated Lithiations".
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in another nucleophilic aromatic substitution through an anionic intermediate.
448: 296: 226: 127: 123: 513: 559: 465: 238: 199:-butyl phenyl sulfoxide. On approach to the lithium intermediate, the bulky 766: 184:
DOM has traditionally been applied to tertiary anilines and benzyl amines.
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This article is about Organolithium chemistry. For other uses, see
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Relative Reactivities of Organometallic Compounds. XX.* Metalation
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followed by DOM reaction initiated again by n-butyllithium with
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the ring in the nearest ortho- position forming the aryllithium
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Directed meta-Metalation Using Alkali-Metal-Mediated Zincation
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and (S)-tert-butyl tert-butanethiosulfinate to enantiopure an
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Jonathan Clayden, Christopher C. Stimson and Martine Keenan
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to prepare compounds that are useful as hindered ligands.
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is lithiated, then reacted with triisopropoxyborane to a
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In another application DOM is applied in placing a bulky
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The method has also been applied to the synthesis of
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Scheme 2. Scope of DoM reactions (ref. Snieckus 1990)
494:: CS1 maint: DOI inactive as of September 2024 ( 168:This reaction type was reported independently by 566:N-tosylimine. The sulfoxide group is removed by 114:in its specific aggregation state (hence (R-Li) 157:because the ortho position alone is targeted. 149:Ordinary electrophilic substitutions with an 8: 761:Volume 45, Issue 23, Pages 3775 - 3778 2006 263:Scheme 4. DOM application ref. Clayden 2006 99:. An aromatic ring system with a DMG group 142:with a strong preference for the lithium 656:Tetrakis(triphenylphosphine)palladium(0) 271:M has also been applied combined with a 759:Angewandte Chemie International Edition 638:In this sequence the starting material 547:Scheme 3. Reaction scheme: reaction of 344: 221:Scheme 3. DOM application ref. Fur 2006 487: 122:since the hetero atom on the DMG is a 80:group.The compound can be produced by 195:, which involves ortho-lithiation of 95:The general principle is outlined in 52:attach themselves exclusively to the 7: 243:electrophilic aromatic substitution 237:and the subsequent reaction to the 140:electrophilic aromatic substitution 130:. The very basic alkyllithium then 91:Scheme 1. Directed ortho metalation 46:electrophilic aromatic substitution 235:nucleophilic aromatic substitution 25: 327:to N,N-dimethyl-3-iodoaniline: 32:Carbon-hydrogen bond activation 1: 482:10.3998/ark.5550190.p008.744 295:DOM has also been used with 229:group in an ortho position ( 146:replacing the lithium atom. 68:. Examples of DMG's are the 392:10.1002/0471264180.or026.01 818: 29: 650:and finally reacted with 334:Directed Meta Metallation 38:Directed ortho metalation 622:; 72(5) pp 1588 - 1594. 535:; 71(7) pp 2609 - 2616; 514:10.15227/orgsyn.053.0056 595:Chemical Communications 233:). The lithiation is a 210:is responsible for the 58:direct metalation group 802:Substitution reactions 767:10.1002/anie.200600720 484:(inactive 2024-09-12). 335: 291:Thiophenol derivatives 287: 264: 222: 165: 92: 44:) is an adaptation of 578:group, ee stands for 333: 285: 262: 220: 163: 90: 722:; 111 pp 2327-2329; 646:, then reacted with 245:. In the final step 212:asymmetric induction 732:Dalton Transactions 728:10.1021/ja00188a071 712:10.1021/ja00184a040 696:10.1021/ja00184a039 680:10.1021/ja00184a038 580:enantiomeric excess 434:10.1021/ja01870a037 369:10.1021/cr00104a001 82:directed lithiation 706:; 111 pp 665-669; 690:; 111 pp 658-665. 428:; 61(1); 109-112. 386:. pp. 1–360. 336: 288: 265: 223: 166: 118:) to intermediate 103:interacts with an 93: 716:J. Am. Chem. Soc. 700:J. Am. Chem. Soc. 684:J. Am. Chem. Soc. 674:; 111 pp 654-658 668:J. Am. Chem. Soc. 628:10.1021/jo0620359 422:J. Am. Chem. Soc. 420:, Robert L. Bebb 384:Organic Reactions 317:di-tert-butylzinc 311:, sodium salt of 277:one-pot synthesis 191:benzyl amines in 27:Chemical reaction 16:(Redirected from 809: 786: 783:room temperature 775: 769: 752: 746: 744:10.1039/B511827A 664: 658: 636: 630: 611: 605: 588: 582: 545: 539: 522: 516: 506: 500: 499: 493: 485: 461: 455: 442: 436: 412: 406: 405: 379: 373: 372: 357:Chemical Reviews 353:Snieckus, Victor 349: 303:Related reaction 155:regioselectivity 151:activating group 126:and lithium the 21: 18:Ortho-lithiation 817: 816: 812: 811: 810: 808: 807: 806: 792: 791: 790: 789: 776: 772: 753: 749: 665: 661: 637: 633: 612: 608: 589: 585: 546: 542: 523: 519: 507: 503: 486: 463: 462: 458: 443: 439: 413: 409: 402: 381: 380: 376: 351: 350: 346: 341: 305: 293: 273:Suzuki reaction 182: 117: 35: 28: 23: 22: 15: 12: 11: 5: 815: 813: 805: 804: 794: 793: 788: 787: 770: 747: 659: 644:boronate ester 631: 606: 601:, 1393 - 1394 583: 540: 517: 501: 456: 437: 407: 400: 374: 363:(6): 879–933. 343: 342: 340: 337: 304: 301: 292: 289: 214:taking place. 181: 178: 115: 74:tertiary amine 56:position of a 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 814: 803: 800: 799: 797: 784: 780: 774: 771: 768: 764: 760: 756: 751: 748: 745: 741: 737: 733: 729: 725: 721: 717: 713: 709: 705: 701: 697: 693: 689: 685: 681: 677: 673: 669: 663: 660: 657: 653: 649: 645: 641: 635: 632: 629: 625: 621: 617: 616:J. Org. Chem. 610: 607: 604: 600: 596: 592: 587: 584: 581: 577: 573: 569: 568:hydrogenation 565: 564:electrophilic 561: 557: 556:-butyllithium 555: 550: 544: 541: 538: 534: 530: 529:J. Org. Chem. 526: 521: 518: 515: 511: 505: 502: 497: 491: 483: 479: 475: 471: 467: 460: 457: 453: 450: 446: 441: 438: 435: 431: 427: 423: 419: 416: 411: 408: 403: 397: 393: 389: 385: 378: 375: 370: 366: 362: 358: 354: 348: 345: 338: 332: 328: 326: 322: 318: 314: 310: 302: 300: 298: 290: 284: 280: 278: 274: 270: 261: 257: 255: 251: 250:-butyllithium 249: 244: 240: 236: 232: 228: 219: 215: 213: 209: 206: 203:group on the 202: 198: 194: 190: 185: 179: 177: 176:around 1940. 175: 171: 162: 158: 156: 152: 147: 145: 144:ipso position 141: 137: 133: 129: 125: 121: 113: 112:-butyllithium 111: 106: 102: 98: 89: 85: 83: 79: 76:group and an 75: 71: 67: 63: 59: 55: 51: 50:electrophiles 47: 43: 39: 33: 19: 781:reaction at 773: 754: 750: 735: 719: 703: 687: 671: 662: 640:nicotinamide 634: 619: 609: 598: 590: 586: 572:Raney nickel 553: 543: 532: 524: 520: 504: 490:cite journal 473: 469: 459: 451: 440: 425: 418:Henry Gilman 414: 410: 383: 377: 360: 356: 347: 306: 294: 268: 266: 247: 230: 224: 208:electrophile 196: 192: 186: 183: 174:Georg Wittig 170:Henry Gilman 167: 148: 135: 132:deprotonates 119: 109: 105:alkyllithium 100: 96: 94: 84:of anisole. 61: 41: 37: 36: 738:; 967-974; 652:iodobenzene 549:iodobenzene 297:thiophenols 254:nucleophile 189:enantiopure 66:hetero atom 574:. ts is a 454:, 73, 1197 449:Chem. Ber. 401:0471264180 339:References 252:acts as a 227:tert-butyl 128:Lewis acid 124:Lewis base 560:sulfoxide 476:: 19–48. 445:G. Wittig 239:sulfoxide 72:group, a 48:in which 796:Category 777:Solvent 603:Abstract 537:Abstract 231:scheme 4 193:scheme 3 180:Examples 107:such as 97:scheme 1 648:pinacol 470:Arkivoc 447:et al. 70:methoxy 779:hexane 398:  325:iodine 54:ortho- 576:tosyl 570:with 551:with 319:is a 309:TMEDA 275:in a 205:imine 201:tosyl 78:amide 736:2006 720:1989 704:1989 688:1989 672:1989 654:and 620:2007 599:2006 533:2006 496:link 474:2015 452:1940 426:1939 396:ISBN 321:meta 315:and 248:tert 197:tert 172:and 763:doi 740:doi 724:doi 708:doi 692:doi 676:doi 624:doi 510:doi 478:doi 430:doi 388:doi 365:doi 313:TMP 241:an 62:DMG 60:or 42:DoM 798:: 734:; 718:; 702:; 686:; 670:; 618:; 597:, 531:; 492:}} 488:{{ 472:. 468:. 424:; 394:. 361:90 359:. 279:: 765:: 742:: 726:: 710:: 694:: 678:: 626:: 554:n 512:: 498:) 480:: 432:: 404:. 390:: 371:. 367:: 269:o 267:D 136:3 120:2 116:n 110:n 101:1 40:( 34:. 20:)

Index

Ortho-lithiation
Carbon-hydrogen bond activation
electrophilic aromatic substitution
electrophiles
ortho-
direct metalation group
hetero atom
methoxy
tertiary amine
amide
directed lithiation
Scheme 1. Directed ortho metalation
alkyllithium
n-butyllithium
Lewis base
Lewis acid
deprotonates
electrophilic aromatic substitution
ipso position
activating group
regioselectivity
Scheme 2. Scope of DoM reactions (ref. Snieckus 1990)
Henry Gilman
Georg Wittig
enantiopure
tosyl
imine
electrophile
asymmetric induction
Scheme 3. DOM application ref. Fur 2006

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