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[452], 'A': [453], 'bold': [454], 'diversification': [455], 'strategy:': [456], 'Aromatic': [457], 'alkynes,': [458], 'p-toluenesulfonyl': [459], 'azide,': [460], 'aromatic': [462], '2-oxobut-3-ynoates': [463], 'underwent': [464], 'copper(I)-catalyzed': [466, 1026], 'multicomponent': [467, 1027], 'reaction': [468, 490], 'provide': [470], 'functionalized': [471], '2-iminooxetanes': [472, 575], '1,': [473], 'which': [474], 'could': [475, 1160], 'be': [476, 561, 1161, 1241], 'converted': [477], 'selectively': [478], 'into': [479], 'five-membered': [480], 'nitrogen-containing': [481], 'heterocycles': [482], 'two': [484], 'different': [485], 'sorts,': [486], 'depending': [487], 'on': [488, 886, 1025, 1031], 'conditions': [491], '(see': [492, 1178], 'scheme;': [493], 'Tf=trifluoromethanesulfonyl;': [494], 'R=Et,': [495], 'iPr).': [496], 'Supporting': [497, 1180], 'Information': [498, 1181], 'Detailed': [499], 'facts': [500], 'importance': [502], 'specialist': [504], 'readers': [505], 'are': [506, 513, 521], 'published': [507], 'as': [508, 524, 1151, 1561], '"Supporting': [509], 'Information".': [510], 'Such': [511], 'documents': [512], 'peer-reviewed,': [514], 'but': [515], 'not': [516, 539], 'copy-edited': [517], 'or': [518, 544, 1038], 'typeset.': [519], 'They': [520], 'made': [522], 'available': [523], 'submitted': [525], 'authors.': [528, 553], 'Filename': [529], 'Description': [530], 'anie_201004685_sm_miscellaneous_information.pdf3': [531], 'MB': [532], 'miscellaneous_information': [533], 'Please': [534], 'note:': [535], 'The': [536, 1247], 'publisher': [537], 'is': [538], 'responsible': [540], 'content': [543], 'functionality': [545], 'any': [547, 1175], 'supporting': [548], 'information': [549], 'supplied': [550], 'Any': [554], 'queries': [555], '(other': [556], 'than': [557], 'missing': [558], 'content)': [559], 'should': [560], 'directed': [562], 'corresponding': [565], 'article.': [569], 'References': [570], '1For': [571], 'formation': [573], 'alkyl': [577], 'groups': [578], 'at': [579, 1168], 'nitrogen': [581], 'atom,': [582], 'see:': [583, 660, 762, 845, 891, 959, 1040, 1064, 1124, 1194, 1214, 1372, 1384, 1563, 1609], '1aG.': [584], 'Barbaro,': [585, 662, 674, 686], 'A.': [586, 610, 613, 641, 663, 675, 687, 822, 1125, 1261, 1323, 1357, 1438, 1623], 'Battaglia,': [587, 664, 676, 688], 'P.': [588, 665, 677, 689, 1053, 1097, 1320, 1500], 'Giorgianni,': [589, 666, 678, 690], 'J.': [590, 602, 618, 667, 679, 691, 809, 813, 824, 867, 878, 922, 981, 985, 996, 998, 1014, 1042, 1199, 1260, 1282, 1312, 1319, 1334, 1336, 1340, 1361, 1395, 1440, 1449, 1463, 1475, 1486, 1492, 1502, 1520, 1537, 1570, 1583, 1638], 'Org.': [591, 668, 680, 692, 868, 923, 946, 987, 1018, 1047, 1077, 1088, 1103, 1114, 1217, 1313, 1325, 1346, 1464, 1531, 1547, 1625], 'Chem.': [592, 604, 620, 669, 681, 693, 774, 779, 795, 800, 815, 829, 834, 856, 869, 876, 901, 906, 924, 938, 966, 971, 1048, 1132, 1201, 1274, 1290, 1314, 1359, 1376, 1397, 1418, 1423, 1442, 1465, 1477, 1494, 1508, 1513, 1572, 1581, 1595, 1600, 1640], '1988,': [593], '53,': [594], '5501;': [595], '1bW.': [596], 'M.': [597, 626, 643, 699, 789, 807, 826, 898, 916, 1000, 1067, 1129, 1301, 1304, 1389, 1410, 1451, 1622], 'F.': [598, 723, 787, 1101, 1415, 1566], 'Fabian,': [599], 'R.': [600, 615, 632, 645, 750, 874, 1272, 1303, 1408, 1579, 1590], 'Janoschek,': [601], 'Am.': [603, 619, 814, 1396, 1441, 1476, 1493, 1571, 1639], 'Soc.': [605, 621, 816, 1398, 1443, 1478, 1495, 1573, 1641], '1997,': [606], '119,': [607, 776], '4253;': [608], '1cL.': [609], 'Singer,': [611], 'G.': [612, 852, 864, 1056, 1128, 1342, 1392], 'Davis,': [614], 'L.': [616, 720, 751, 1086, 1308, 1322], 'Knutsen,': [617], '1972,': [622, 1134], '94,': [623], '1188;': [624], '1dF.': [625], 'Perna,': [627], 'V.': [628, 850, 962, 963, 1298, 1458, 1459, 1504, 1505], 'Capriati,': [629], 'S.': [630, 741, 767, 848, 1002, 1044, 1069, 1197, 1390, 1403, 1434, 1437, 1461, 1473, 1490, 1524, 1529, 1539, 1542, 1545, 1568, 1592], 'Florio,': [631], 'Luisi,': [633], 'Tetrahedron': [634, 649, 744, 1614], 'Lett.': [635, 650, 947, 988, 1019, 1078, 1089, 1104, 1115, 1326, 1347, 1532, 1548, 1615, 1626], '2003,': [636, 1378], '44,': [637], '3477;': [638], '1eR.': [639], 'Gandolfi,': [640], 'Gamba,': [642], 'Presutto,': [644], 'Oberti,': [646], 'N.': [647, 716, 811, 1299], 'Sardone,': [648], '1996,': [651], '37,': [652], '917;': [653], 'ring': [656, 843, 887], 'opening': [657], '2-iminooxetanes,': [659], '1fG.': [661], '1992,': [670, 1221], '57,': [671], '5128;': [672], '1gG.': [673], '1994,': [682], '59,': [683], '906;': [684], '1hG.': [685], '1995,': [694], '60,': [695], '1020.': [696], '2': [697], '2aB.': [698], 'Trost': [700], 'in': [701, 705, 725, 729, 1033, 1165], 'Small': [702, 726], 'Ring': [703, 727], 'Compounds': [704, 728], 'Organic': [706, 730], 'Synthesis': [707, 731], '(Ed.:': [708, 732], '),': [709, 733], 'Springer,': [710, 734], 'Berlin,': [711, 735], '1986,': [712, 736], '3;': [714], '2bH.': [715], 'C.': [717, 920, 936, 1258, 1406], 'Wong,': [718], 'K.': [719, 722, 742, 1271, 1296, 1355, 1404, 1431, 1455, 1612, 1620], 'Lau,': [721], 'Tam': [724], '83;': [738], '2cA.': [739], 'Padwa,': [740], 'Bur,': [743], '2007,': [745, 775, 782, 989, 1348], '63,': [746], '5341;': [747], '2dY.': [748], 'Tennyson,': [752], 'D.': [753, 790, 934, 979, 1413, 1435, 1632], 'Romo,': [754], 'Heterocycles': [755], '2004,': [756], '64,': [757], '605;': [758], 'recent': [760, 884, 1062, 1382], 'studies,': [761], '2eZ.': [763], 'Q.': [765, 771, 1004], 'Sun,': [768], 'T.': [769, 792, 1095, 1281, 1338, 1412], 'Xiong,': [770], 'Liu,': [772, 1066, 1068, 1386, 1631], 'Angew.': [773, 778, 794, 799, 828, 833, 900, 905, 965, 970, 1417, 1422, 1507, 1512, 1594, 1599], '1756;': [777], 'Int.': [780, 801, 835, 907, 972, 1220, 1424, 1514, 1601], 'Ed.': [781, 802, 836, 908, 973, 1425, 1515, 1602], '46,': [783], '1726;': [784], '2fI.': [785], 'Braun,': [786], 'Rudroff,': [788], 'Mihovilovic,': [791], 'Bach,': [793], '2006,': [796, 803, 902, 909, 967, 974, 1079, 1090, 1266, 1292, 1509, 1516, 1533], '118,': [797, 903, 968, 1510], '5667;': [798], '45,': [804, 910, 975, 1517], '5541;': [805], '2gB.': [806], 'Trost,': [808], 'Xie,': [810], 'Maulide,': [812], '2008,': [817, 879, 925, 940, 1020, 1116, 1399, 1466, 1574, 1627], '130,': [818, 1400, 1575], '17258;': [819], '2hJ.': [820], 'Barluenga,': [821], 'Gómez,': [823], 'Santamaría,': [825], 'Tomás,': [827], '2010,': [830, 837, 1059, 1105, 1362], '122,': [831], '1328;': [832], '1306.': [839], '3For': [840], 'reviews': [841, 1024], 'rearrangements,': [844], '3aN.': [846], 'Vivona,': [847], 'Buscemi,': [849], 'Frenna,': [851], 'Gusmano,': [853], 'Adv.': [854, 1006], 'Heterocycl.': [855], '1993,': [857], '56,': [858], '49;': [859], '3bG.': [860], 'Hajós,': [861], 'Z.': [862, 1344], 'Riedl,': [863], 'Kollenz,': [865], 'Eur.': [866, 877, 1311, 1360, 1582], '2001,': [870], '3405;': [871], '3cN.': [872], 'Isambert,': [873], 'Lavilla,': [875], '14,': [880], '8444.': [881], '4For': [882], 'studies': [885], 'transformations': [888], 'heterocycles,': [890], '4aC.': [892], 'H.': [894, 983, 1071, 1075, 1332, 1471, 1483, 1525, 1527, 1540, 1543], 'Ding,': [895, 913, 929], 'Y.': [896, 914, 930, 944, 1055, 1073], 'Bian,': [899, 917], '7957;': [904], '7793;': [911], '4bH.': [912], 'W.': [918, 932], '73,': [926, 1467], '578;': [927], '4cH.': [928], 'Xu,': [935, 978, 1388], 'Commun.': [939], '5797;': [941], '4dC.': [942], 'Yang,': [945, 1345], '2005,': [948, 1315, 1479, 1496], '7,': [949], '1343.': [950], '5For': [951], 'elegant': [952], '[2+2]': [953], 'annulations': [954], 'imines': [956], 'iminophosphoranes,': [958], '5aM.': [960], 'Whiting,': [961], 'Fokin,': [964, 1460, 1506], '3229;': [969], '3157;': [976], '5bX.': [977], 'Cheng,': [980], 'Li,': [982, 1083, 1331], 'Guo,': [984, 1070], 'Yan,': [986], '9,': [990, 1349], '1585;': [991], '5cY.': [992], 'Shang,': [993], 'X.': [994], 'He,': [995], 'Hu,': [997], 'Wu,': [999], 'Yu,': [1003], 'Synth.': [1007], 'Catal.': [1008], '2009,': [1009, 1049, 1327, 1419, 1426, 1444, 1549, 1584, 1596, 1603, 1642], '351,': [1010], '2709;': [1011], '5dS.-L.': [1012], 'Cui,': [1013], 'Y.-G.': [1016], '10,': [1021, 1117, 1628], '1267.': [1022], '6For': [1023], 'reactions': [1028], 'that': [1029], 'reply': [1030], 'situ': [1034], 'generation': [1035], 'N-sulfonyl-': [1037], 'N-phosphorylketenimines,': [1039], '6aE.': [1041], 'Yoo,': [1043, 1450, 1487, 1521, 1538], 'Chang,': [1045, 1462, 1474, 1491, 1530, 1546], 'Curr.': [1046], '13,': [1050], '1766;': [1051], '6b': [1052], 'Lu,': [1054], 'Synlett': [1058], '165.': [1060], '7For': [1061], 'references,': [1063, 1383], '7aY.': [1065], 'Tu,': [1072], 'Zhou,': [1074], 'Gao,': [1076], '8,': [1080, 1091, 1534], '3445;': [1081], '7bH.': [1082], 'Y.-Q.': [1084], 'Deng,': [1087], '4063;': [1092], '7cC.': [1093], 'Francois-Endelmond,': [1094], 'Carlin,': [1096], 'Thuery,': [1098], 'O.': [1099], 'Loreau,': [1100], 'Taran,': [1102], '12,': [1106], '40;': [1107], '7dQ.': [1108], 'Kang,': [1109], 'Z.-A.': [1110], 'Zhao,': [1111, 1289], 'S.-L.': [1112], 'You,': [1113], '2031.': [1118, 1364], '8For': [1119], 'tautomerism,': [1123], 'I.': [1126, 1453, 1488, 1522], "Kol'tsov,": [1127], 'Kheifets,': [1130], 'Russ.': [1131], 'Rev.': [1133, 1275], '41,': [1135], '452.': [1136], 'According': [1137], '1H': [1139], 'NMR': [1140], 'spectroscopic': [1141], 'analysis,': [1142], 'isolated': [1144], 'compound': [1145], '5': [1146, 1158], 'ac': [1147, 1159], 'contained': [1148], '4': [1149], 'aa': [1150], 'an': [1152], 'impurity': [1153], '(ca.': [1154], '7': [1155], '%).': [1156], 'Compound': [1157], 'stored': [1162], 'under': [1163], 'N2': [1164], 'refrigerator': [1167], '−20': [1169], '°C': [1170], 'three': [1172], 'weeks': [1173], 'without': [1174], 'detectable': [1176], 'change': [1177], 'details).': [1183], '9For': [1184], 'synthetic': [1189], 'application': [1190], 'cesium': [1192], 'carbonate,': [1193], '9aT.': [1195], 'Flessner,': [1196], 'Doye,': [1198], 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[1402], 'Hashmi,': [1405], 'Lothschütz,': [1407], 'Döpp,': [1409], 'Rudolph,': [1411], 'Ramamurthi,': [1414], 'Rominger,': [1416], '121,': [1420, 1597], '8392;': [1421], '48,': [1427, 1604], '8243;': [1428], '12dY.': [1429], 'Shi,': [1430], 'E.': [1432, 1485], 'Roth,': [1433], 'Ramgren,': [1436], 'Blum,': [1439], '131,': [1445, 1643], '18022.': [1446], '13': [1447], '13aE.': [1448], 'Ahlquist,': [1452], 'Bae,': [1454, 1470, 1489, 1523], 'Sharpless,': [1457], '5520;': [1468], '13bI.': [1469], 'Han,': [1472, 1528], '127,': [1480, 1497], '2038;': [1481], '13cS.': [1482], 'Cho,': [1484, 1526], '16046;': [1498], '13dM.': [1499], 'Cassidy,': [1501], 'Raushel,': [1503], '3226;': [1511], '3154;': [1518], '13eE.': [1519], '1347;': [1535], '13fE.': [1536], 'Park,': [1541], 'Lee,': [1544], '1155.': [1551], '14For': [1552], 'deprotonation': [1554], 'acyclic': [1556], 'sulfonylimidates': [1557], 'their': [1559], 'use': [1560], 'nucleophiles,': [1562], '14aR.': [1564], 'Matsubara,': [1565, 1580, 1591], 'Berthiol,': [1567], 'Kobayashi,': [1569, 1578, 1593], '1804;': [1576], '14bS.': [1577], '15,': [1585], '10694;': [1586], '14cH.': [1587], 'Van': [1588], 'Nguyen,': [1589], '6041;': [1598], '5927.': [1605], '15For': [1606], '3-alkynoate-to-allenoate': [1607], 'isomerizations,': [1608], '15aT.': [1610], 'Yasokouchi,': [1611], 'Kanematsu,': [1613], '1989,': [1616], '30,': [1617], '6559;': [1618], '15bA.': [1619], 'Basak,': [1621], 'Tius,': [1624], '4073;': [1629], '15cH.': [1630], 'Leow,': [1633], 'K.-W.': [1634], 'Huang,': [1635], 'C.-H.': [1636], 'Tan,': [1637], '7212.': [1644], 'Citing': [1645], 'Literature': [1646], 'Volume49,': [1647], 'Issue48November': [1648], '22,': [1649], '2010Pages': [1650], 'ReferencesRelatedInformation': [1652]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2137889051', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 3}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 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