An efficient and versatile route to the synthesis of 9,10-dihydro-3-formylphenanthrenes

Tetrahedron Letters

Volumn 48, Issue 10, 2007, Pages 1715-1719

  Pratap, Ramendra ^a   Ram, Vishnu Ji ^a  

^a CENTRAL DRUG RESEARCH INSTITUTE   (India)

Author keywords

2 Oxo 4 sec amino 5,6 dihydro 2H benzo h chromene 3 carbonitriles; Formylphenanthrene; Masked aldehyde; Ring transformation; Tetralone

Indexed keywords

ACETAL DERIVATIVE; AMINE; CHROMENE DERIVATIVE; CYANIDE; FORMIC ACID DERIVATIVE; METHYL GROUP; PHENANTHRENE DERIVATIVE;

AQUEOUS SOLUTION; ARTICLE; CYCLIZATION; DECARBOXYLATION; QUANTUM YIELD; REACTION ANALYSIS; RING CLOSING METATHESIS; SYNTHESIS;

EID: 33846811431     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.01.049     Document Type: Article

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27. +) found for m/z 410.1988.Synthesis of 3-formylphenanthrenes (7): These were obtained by stirring a solution of masked formylphenanthrene 6 (0.2 mmol) in chloroform with Amberlyst 15 for 2.5-4 h. The progress of the reaction was monitored by TLC. After completion, the reaction mixture was filtered and the solvent was removed under reduced pressure.[...]