Volume 97 (2020) Zoom Articles Display Toggle all articles expansion 1 Preparation of Asymmetric Phase-transfer Catalyst, 1,4-Bis((4S,5S)-1,3-bis(3,5-di-tert-butylbenzyl)-4,5-diphenylimidazolidin-2-ylidene)piperazine-1,4-diium chloride Esther Cai Xia Ang, Xinyi Ye, and Choon-Hong Tan Org. Synth. 2020, 97, 274 DOI: 10.15227/orgsyn.097.0274 Checked by: Prasanth R. Nyalapatla, Hari P. R. Mangunuru, Gopal Sirasani, Joseph Armstrong, and Chris Senanayake



2 Stereoselective Synthesis of Chiral Sulfinamide Monophosphine Ligands (Ming-Phos)(S, Rs)-M Anjing Hu, Zhan-Ming Zhang, Yuanjing Xiao, and Junliang Zhang Org. Synth. 2020, 97, 262 DOI: 10.15227/orgsyn.097.0262 Checked by: Anji Chen, Gopal Sirasani, Joseph Armstrong, and Chris Senanayake



3 Anhydrous, Homogeneous, Suzuki-Miyaura Cross-Coupling of Boronic Esters using Potassium Trimethylsilanolate Connor P. Delaney, Ethan M. Heyboer, and Scott E. Denmark Org. Synth. 2020, 97, 245 DOI: 10.15227/orgsyn.097.0245 Checked by: Yujia Tao and Sarah Reisman



4 Discussion Addendum for: Synthesis of Substituted Indazoles via [3 + 2] Cycloaddition of Benzyne and Diazo Compounds Anton V. Dubrovskiy and Richard C. Larock Org. Synth. 2020, 97, 232 DOI: 10.15227/orgsyn.097.0232 Original Article: Org. Synth. 2010, 87, 95



5 Preparation of a Z-Iodoalkene through Stork-Zhao-Wittig Olefination, Stereo-retentive Lithium-iodine Exchange and Z-Boronic acid Pinacol Ester Synthesis Mathieu A. Morin, Samantha Rohe, Cecile Elgindy, and Michael S. Sherburn Org. Synth. 2020, 97, 217 DOI: 10.15227/orgsyn.097.0217 Checked by: Alexander Preinfalk, Martin Berger, and Nuno Maulide



6 Preparation of O-Pivaloyl Hydroxylamine Triflic Acid Szabolcs Makai, Eric Falk, and Bill Morandi Org. Synth. 2020, 97, 207 DOI: 10.15227/orgsyn.097.0207 Checked by: Zhaobin Han and Kuiling Ding



7 Synthesis of 2,5-Diaryloxadiazinones Andrew V. Kelleghan, Katie A. Spence, and Neil K. Garg Org. Synth. 2020, 97, 189 DOI: 10.15227/orgsyn.097.0189 Checked by: Edward Jin, Kyan D'Angelo, and Mohammad Movassaghi



8 Synthesis of Chiral Bisoxazoline Ligands: (3aR,3a'R,8aS,8a'S)-2,2'-(cyclopropane-1,1-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole) L. Hofstra, Travis J. DeLano, and Sarah E. Reisman Org. Synth. 2020, 97, 172 DOI: 10.15227/orgsyn.097.0172 Checked by: Sergio Cuesta-Galisteo, Jorge A. González, and Cristina Nevado



9 Synthesis of α-Bromoacetyl MIDA Boronate C. Frank Lee, Chieh-Hung Tien, Shinya Adachi, and Andrei K. Yudin Org. Synth. 2020, 97, 157 DOI: 10.15227/orgsyn.097.0157 Checked by: Zhaobin Han and Kuiling Ding



10 From 5-Hydroxynicotinic Acid to Nitrogenous (4+3)-Cycloadducts Alexander S. Harmata and Michael Harmata Org. Synth. 2020, 97, 139 DOI: 10.15227/orgsyn.097.0139 Checked by: Feng Peng and Kevin Campos



11 Discussion Addendum for: Pd-Catalyzed External-CO-Free Carbonylation: Preparation of 2,4,6-Trichlorophenyl 3,4-Dihydronaphthalene-2-Carboxylate Hideyuki Konishi and Kei Manabe Org. Synth. 2020, 97, 125 DOI: 10.15227/orgsyn.097.0125 Original Article: Org. Synth. 2014, 91, 39



12 Synthesis of 4-Nitrophenyl (2,2,6,6-Tetramethylpiperidin-1-yl) Carbonate (NPTC) for N-Protection of l-Phenylalanine Ethyl Ester Joseph R. Lizza and Peter Wipf Org. Synth. 2020, 97, 96 DOI: 10.15227/orgsyn.097.0096 Checked by: Kensuke Miura, Hiroaki Itoh, and Masayuki Inoue



13 Discussion Addendum for: (S)-(-)-2-Allylcyclohexanone (2-Allylcyclohexan-1-one] Manfred Braun Org. Synth. 2020, 97, 79 DOI: 10.15227/orgsyn.097.0079 Original Article: Org. Synth. 2009, 86, 47



14 Discussion Addendum for: Dibenzo[a,e]cyclooctene: Multigram Synthesis of a Bidentate Ligand Günter Helmchen Org. Synth. 2020, 97, 66 DOI: 10.15227/orgsyn.097.0066 Original Article: Org. Synth. 2012, 89, 55



15 Scalable Preparation of O-(Diphenylphosphinyl) hydroxylamine (DPPH) Tamas Benkovics, Andrew J. Neel, Ralph Zhao, and Gregory J. Hughes Org. Synth. 2020, 97, 54 DOI: 10.15227/orgsyn.097.0054 Checked by: Vinicius F. Armelin, Tony Z. Scott, and Mohammad Movassaghi



16 Preparation of (-)-Levoglucosenone from Cellulose Using Sulfuric Acid in Polyethylene Glycol J. Klepp, W. Dillon, Y. Lin, P. Feng,& and B. W. Greatrex Org. Synth. 2020, 97, 38 DOI: 10.15227/orgsyn.097.0038 Checked by: Yusuke Imamura, Masanori Nagatomo, and Masayuki Inoue



17 Synthesis of 3,6-Bis(dimethylamino)-9H-xanthen-9-one by Stepwise Chemical Redox Cycling James L. Bachman, Cyprian I. Pavlich, and Eric V. Anslyn Org. Synth. 2020, 97, 21 DOI: 10.15227/orgsyn.097.0021 Checked by: Jacob E. Dander, Katie A. Spence, and Neil K. Garg



18 Deaminative Functionalization of Primary Sulfonamides Patrick S. Fier and Kevin M. Maloney Org. Synth. 2020, 97, 12 DOI: 10.15227/orgsyn.097.0012 Checked by: Melissa A. Hardy and Richmond Sarpong



19 Discussion Addendum for: Synthesis of Arylboronic Pinacol Esters from Corresponding Arylamines Fanyang Mo, Di Qiu and Jianbo Wang Org. Synth. 2020, 97, 1 DOI: 10.15227/orgsyn.097.0001 Original Article: Org. Synth. 2014, 91, 106





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