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66. Non-electronic Activation of Aromatic Ring by Simple Steric Repulsion between Substituents in 1-Methylquinolinium Salt Systems

Kento Iwai, Soichi Yokoyama, Haruyasu Asahara, Nagatoshi Nishiwaki

Bulletin of the Chemical Society of Japan, 2020, 93, 50–57. (DOI: 10.1246/bcsj.20190263)

65. Anion-Capture-Induced Fluorescence Enhancement of Bis(cyanostyryl)pyrrole Based on a Concept of Restricted Access to Conical Intersection

Soichi Yokoyama, Akitaka Ito, Haruyasu Asahara, Nagatoshi Nishiwaki

Bulletin of the Chemical Society of Japan, 2019, 92, 1807-1815.  (DOI: 10.1246/bcsj.20190196)

64. Photochemical C–H oxygenation of side-chain methyl groups in polypropylene with chlorine dioxide

Kei Ohkubo, Haruyasu Asahara, and Tsuyoshi Inoue,

Chemical Communications, 2019, 55, 4723ー4726.  (DOI: 10.1039/C9CC01037H)

63. A Facile Synthesis of Oxiranes Possessing Three or Four Carbonyl Groups

Haruyasu Asahara, Shuhei Kikuchi, Yuto Unno, Soichi Yokoyama, Kotaro Yoshioka, Shinki Tani, Kazuto Umezu, Nagatoshi Nishiwaki

Current Organic Chemistry, 2019, 23, 97–102.  (DOI: 10.2174/1385272823666190112103813)

62. Metal-Free O-Selective Direct Acylation of Amino Alcohols Through Pseudo-Intramolecular Process

Soichi Yokoyama, Hiroshi Shibauchi, Haruyasu Asahara, and Nagatoshi Nishiwaki

European Journal of Organic Chemistry, 2019, 1125–1133. (DOI: 10.1002/ejoc.201801589)

61. Facile Synthesis of Onychines

Mao Arita, Soichi Yokoyama, Haruyasu Asahara, and Nagatoshi Nishiwaki

Synthesis, 2019, 51, 2007ー2013. (DOI: 10.1055/s-0037-1612058)

60. Alkynylation and Cyanation of Alkenes Using Diverse Properties of a Nitro Group

Haruyasu Asahara, Ayano Sofue, Yasuyuki Kuroda, Nagatoshi Nishiwaki

The Journal of Organic Chemistry, 2018, 83, 13691–13699. (DOI: 10.1021/acs.joc.8b01865)

59. Unsymmetrical Tetra-acceptor-substituted Alkenes as Polyfunctionalized Building Blocks: A Divergent Synthesis of Densely Functionalized Pyrrolizines

Haruyasu Asahara, Shu Kawakami, Kotaro Yoshioka, Shinki Tani, Kazuto Umezu, and Nagatoshi Nishiwaki Bulletin of the Chemical Society of Japan, 2018, 91, 1715–1723. (DOI: 10.1246/bcsj.20180213)

58. Phosphine Induced Dimerization of Propargyl Alcohols Leading to Allyl Propargyl Ethers

Kento Iwai, Soichi Yokoyama, Haruyasu Asahara, Nagatoshi Nishiwaki

Journal of Oleo Science 2018, 67, 773–778. (DOI: 10.5650/jos.ess17277)

57. Activation of 1-Methyl-5-Nitro-2-Pyrimidinone by Dearomatization using a Secondary Amine

Haruyasu Asahara, Azusa Yasuoka, Nagatoshi Nishiwaki

Heterocycles, 2018, 97, 253–259. (DOI: 10.3987/COM-17-S(T)14)