中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-叔-丁基-2,6-二(羟基甲基)苯酚 | 4-tert-butyl-2,5-bis(hydroxymethyl)phenol | 2203-14-7 | C12H18O3 | 210.273 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (5-tert-butyl-2-methoxy-1,3-phenylene)dimethanethiol | 77180-48-4 | C13H20OS2 | 256.433 |
—— | syn-6,15-di-tert-butyl-9-methoxy[3.3]metacyclophane | —— | C27H38O | 378.598 |
—— | 7,15,23,31-tetra-tert-butyl-33,34,35,36-tetramethoxy-2,3,10,11,18,19,26,27-octahomo-3,11,19,27-tetraselenacalix[4]arene | 1169834-69-8 | C52H72O4Se4 | 1076.98 |
—— | 7,15,23,31,39,47-hexa-tert-butyl-49,50,51,52,53,54-hexamethoxy-2,3,10,11,18,19,26,27,34,35,42,43-dodecahomo-3,11,19,27,35,43-hexaselenacalix[6]arene | 1169834-71-2 | C78H108O6Se6 | 1615.47 |
—— | 7,15,23-Tri-tert-butyl-25,26,27-trimethoxy-2,3,10,11,18,19-hexahomo-3,11,19-triselenacalix[3]arene | 1169834-65-4 | C39H54O3Se3 | 807.736 |
—— | 7,15,23,31-Tetra-tert-butyl-33,34,35,36-tetramethoxy-2,3,10,11,18,19,26,27-octahomo-3,11,19,27-tetraoxacalix<4>arene | —— | C52H72O8 | 825.139 |
—— | 6-tert-butyl-9-hydroxy-18-methoxy[3.3]metacyclophane | 1356194-37-0 | C23H30O2 | 338.49 |
—— | 7,15-Ditert-butyl-17,18-dimethoxy-3,11-dithiatricyclo[11.3.1.15,9]octadeca-1(16),5,7,9(18),13(17),14-hexaene | 137171-05-2 | C26H36O2S2 | 444.703 |
—— | 7-Tert-butyl-17,18-dimethoxy-3,11-dithiatricyclo[11.3.1.15,9]octadeca-1(17),5(18),6,8,13,15-hexaene | 195057-50-2 | C22H28O2S2 | 388.595 |
—— | anti-6,15-Di-tert-butyl-9,18-dimethoxy<3.3>metacyclophane-2,11-dione | 175520-81-7 | C28H36O4 | 436.591 |
—— | 6-ter-tbutyl-9,18-dimethoxy[3.3]metacyclophane-2,11-dione | 477254-90-3 | C24H28O4 | 380.484 |
—— | anti-6,15-di-tert-butyl-9-methoxy[3.3]metacyclophane-2,11-dione | 477254-92-5 | C27H34O3 | 406.565 |
Various anti-9-methoxy[3.3]metacyclophane-2,11-diones are exclusively obtained by the coupling reaction of the corresponding 1,3-bis(bromomethyl)benzenes and 2,6-bis[2-isocyano-2-(tolylsulfonyl)ethyl]-4-tert-butylanisole in dimethylformamide (DMF) with an excess of sodium hydride, from which the corresponding syn-[3.3]metacyclophanes (MCPs) are synthesized via anti/syn-isomerization during the Wolff–Kishner reduction. Demethylation of syn-9-methoxy[3.3]MCPs with BBr3 afforded the corresponding syn-9-hydroxy[3.3]MCPs in good yields. The existence of the strong intramolecular hydrogen bonding between the 9-hydroxy group and the 18-substituents, such as F, OH, and OMe groups at the opposing aromatic rings, are observed in solution and in the solid state. A distinct low-field shift of the phenolic OH proton was observed in the 1H NMR spectrum compared with that of the 18-unsubstituted analog. Furthermore, O–H···F through-space coupling was observed.