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Volumn 69, Issue 15, 2013, Pages 3238-3248

Synthesis and ring-opening reaction of novel 1,3-dehydroadamantanes possessing phenyl and alkoxyl substituents

Author keywords

1,3 Dehydroadamantanes; 1,3 Dibromoadamantanes; 1 Acetoxyadamantanes; 1 Methoxyadamantanes; 5 Methoxy 1,3 dehydroadamantane; 5 Phenyl 1,3 dehydroadamantane; Ring opening reaction

Indexed keywords

ACETIC ACID; ADAMANTANE DERIVATIVE; CARBON; CYCLOPROPANE; LITHIUM; METHANOL; PHENYL GROUP;

EID: 84875226007     PISSN: 00404020     EISSN: 14645416     Source Type: Journal    
DOI: 10.1016/j.tet.2013.02.042     Document Type: Article
Times cited : (10)

References (42)
  • 31
    • 84875227245 scopus 로고    scopus 로고
    • It should be noted that considerable amounts (∼15%) of tribromides of 1-phenyl- and 1-alkoxyadamantanes, such as 1,3,5-tribromo-7-phenyladamantane, 1,3,5-tribromo-7-methoxyadamantane, and 1,3,5-tribromo-7-butoxyadamantane certainly formed in the reaction mixtures using mono-substituted adamantanes, such as 8a, 9a, and 9c after the prolonged reaction (See Supplementary data)
    • It should be noted that considerable amounts (∼15%) of tribromides of 1-phenyl- and 1-alkoxyadamantanes, such as 1,3,5-tribromo-7-phenyladamantane, 1,3,5-tribromo-7-methoxyadamantane, and 1,3,5-tribromo-7-butoxyadamantane certainly formed in the reaction mixtures using mono-substituted adamantanes, such as 8a, 9a, and 9c after the prolonged reaction (See Supplementary data).
  • 32
    • 84875211734 scopus 로고    scopus 로고
    • 2. After workup, 11b could be isolated in 21% yield
    • 2. After workup, 11b could be isolated in 21% yield.
  • 33
    • 84875232020 scopus 로고    scopus 로고
    • In several cases, trace amounts of corresponding adamantanes were obtained along with the desired DHAs probably due to the reduction of 1,3-dibromoadamantanes with lithium metal
    • In several cases, trace amounts of corresponding adamantanes were obtained along with the desired DHAs probably due to the reduction of 1,3-dibromoadamantanes with lithium metal.
  • 42
    • 84875209878 scopus 로고    scopus 로고
    • Ref. 2. The simultaneous introduction of two different substituents on adamantyl framework was also attained to form 1-bromo-3-ethoxyadamantane by the reaction of 1a in the presence of bromine in diethyl ether. The reaction of 1a with bromine gave a 3-bromo-1-adamantyl cation, and the cation reacted with nucleophilic diethyl ether to provide an oxonium salt. The following elimination of oxonium salt afforded 1-bromo-3-ethoxyadamantane as a major product from 1a
    • Ref. 2. The simultaneous introduction of two different substituents on adamantyl framework was also attained to form 1-bromo-3-ethoxyadamantane by the reaction of 1a in the presence of bromine in diethyl ether. The reaction of 1a with bromine gave a 3-bromo-1-adamantyl cation, and the cation reacted with nucleophilic diethyl ether to provide an oxonium salt. The following elimination of oxonium salt afforded 1-bromo-3-ethoxyadamantane as a major product from 1a.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.