158. The synthesis of thyroxine and related substances. Part XII. The preparation of some simple analogues of thyroxine

High atomic yield bromine-less benzylic bromination

“…Crystallization from hexane-benzene gave the title compound as colourless prisms (2.11 g; 73%), mp 110-111 °C (lit., 20 108-111 °C).…”

Intramolecular Nucleophilic Participation. The Effect of Certain ortho Substituents on Solvolysis Rates of Benzyl and Benzhydryl Bromides

“…111°, was prepared. 20 This same procedure was also used as an alternate method of preparation of o-benzoyloxybenzyl bromide (86% yield), m.p. 74-74.5°.…”

Synthesis and Structure of Oxacalix[2]arene[2]triazines of an Expanded π-Electron-Deficient Cavity and Their Interactions with Anions

“…Since the free rotation of individual aromatic rings within a macrocycle is prohibited because of the presence of bulky substituents, both 1 H and 13 C NMR spectroscopic data may indicate the shape-persistent symmetric 1,3-alternate conformational structure in solution. To shed light on the orientation of two introduced aromatic rings, such as being inward or outward of the V-cleft formed by two triazine rings, in solution phase, compound ethyl 4-(2,4-dinitrophenoxy)­benzoate was prepared and its 1 H NMR spectrum was compared with that of 9b . Almost identical chemical shift values of aromatic protons were observed (see Figure S22 in Supporting Information), indicating that aromatic rings appending on the lower rim position do not experience shielding effect.…”