Synthesis of 1,2-Disubstituted Naphthalenes and Tetrahydronaphthalenes from Dihydronaphthalenes Obtained by Conjugate Addition of Organolithium Reagents to 2,6-Bis(tert-butyl)-4-methoxyphenyl Naphthalenecarboxylates.
摘要:
开发了一种将2, 6-双(叔丁基)-4-甲氧基苯基二氢萘甲酸酯转化为取代萘和四氢萘的方法。用2, 3-二氯-5, 6-二氰基-1, 4-苯醌对取代的二氢萘甲酸酯进行芳构化,然后用硝酸高铈铵(CAN)处理,得到相应的取代萘甲酸酯。或者,氢解和随后的 CAN 处理提供了一种以良好产率生产四氢萘甲醇的方法。
Synthesis of 1,2-Disubstituted Naphthalenes and Tetrahydronaphthalenes from Dihydronaphthalenes Obtained by Conjugate Addition of Organolithium Reagents to 2,6-Bis(tert-butyl)-4-methoxyphenyl Naphthalenecarboxylates.
摘要:
开发了一种将2, 6-双(叔丁基)-4-甲氧基苯基二氢萘甲酸酯转化为取代萘和四氢萘的方法。用2, 3-二氯-5, 6-二氰基-1, 4-苯醌对取代的二氢萘甲酸酯进行芳构化,然后用硝酸高铈铵(CAN)处理,得到相应的取代萘甲酸酯。或者,氢解和随后的 CAN 处理提供了一种以良好产率生产四氢萘甲醇的方法。
Synthesis of 1,2-Disubstituted Naphthalenes and Tetrahydronaphthalenes from Dihydronaphthalenes Obtained by Conjugate Addition of Organolithium Reagents to 2,6-Bis(tert-butyl)-4-methoxyphenyl Naphthalenecarboxylates.
作者:Mitsuru SHINDO、Kenji KOGA、Kiyoshi TOMIOKA
DOI:10.1248/cpb.47.1318
日期:——
A method of the conversion of 2, 6-bis(tert-butyl)-4-methoxyphenyl dihydronaphthalenecarboxylates into substituted naphthalenes and tetrahydronaphthalenes was developed. Aromatization of substituted dihydronaphthalenecarboxylates with 2, 3-dichloro-5, 6-dicyano-1, 4-benzoquinone and subsequent treatment with ceric ammonium nitrate (CAN) gave the corresponding substituted naphthalenecarboxylic acid. Alternatively, hydrogenolysis and subsequent treatment with CAN provided a way to tetrahydronaphthalenemethanols in good yields.
开发了一种将2, 6-双(叔丁基)-4-甲氧基苯基二氢萘甲酸酯转化为取代萘和四氢萘的方法。用2, 3-二氯-5, 6-二氰基-1, 4-苯醌对取代的二氢萘甲酸酯进行芳构化,然后用硝酸高铈铵(CAN)处理,得到相应的取代萘甲酸酯。或者,氢解和随后的 CAN 处理提供了一种以良好产率生产四氢萘甲醇的方法。