On March 26, 2020, Takemura, Hiroyuki; Morikawa, Akino; Tanaka, Mari; Tatsumi, Akane; Kubota, Yukiko; Kaji, Natsuko; Hasegawa, Ayako; Kumamoto, Fumiko; Obara, Tomoko; Iwanaga, Tetsuo; Sako, Katsuya published an article.SDS of cas: 118-55-8 The title of the article was Syntheses of diaza(hetera)2[1.1.1.1]paracyclophanes by Chapman rearrangement. And the article contained the following:
Diaza(hetera)2[1.1.1.1]paracyclophanes (PCPs) I (X = SO2, CH2; Y = SO2; Q = NH) were prepared by the Chapman rearrangement. This is the first synthesis of highly strained and heteroatom-containing PCPs performed by a rearrangement reaction. The structures of the two precursors, [3.1.3.1]PCPs, e.g., II and [1.1.1.1]PCPs I (X = SO2, CH2, C=O; Y = SO2, C=O; Q = N-C(=O)-o-C6H4-OH), are discussed in detail. In contrast to the small strain of [3.1.3.1]PCPs, e.g., II, [1.1.1.1]PCPs I (Q = N-C(=O)-o-C6H4-OH) release their large strain by bending the aromatic rings and Carom.-X angles. Interestingly, Aromatic-X-Aromatic angles are smaller than those of the corresponding strain-free model compounds The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).SDS of cas: 118-55-8
The Article related to diaza hetera paracyclophane preparation, Heterocyclic Compounds (More Than One Hetero Atom): Eight- and Higher-Membered Rings and other aspects.SDS of cas: 118-55-8
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