Simultaneous accumulation of both skeletal and appendage-based diversities on tandem Ugi/Diels-Alder products

Tetrahedron Letters

Volumn 46, Issue 35, 2005, Pages 5863-5866

  Oikawa, Masato ^a   Ikoma, Minoru ^a   Sasaki, Makoto ^a  

^a TOHOKU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

7 OXANORBORNENE; NORBORNENE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL REACTION; CROSS METATHESIS; CYCLIZATION; DIELS ALDER REACTION; DIVERSITY ORIENTED ORGANIC SYNTHESIS; RING CLOSING METATHESIS; RING OPENING;

EID: 23044435718     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2005.06.147     Document Type: Article

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21. +) m/z 688.1733, found 688.1818.
22. 2, Pd/C, MeOH, rt).
23. The low isolated yields in these reactions are supposed to be due to the crowdness of the skeleton. Though nearly quantitative amount of the unreacted 7 can be recovered intact, we are currently studying the reaction conditions to improve the yields.
24. +) m/z 688.1733, found 688.1805.