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Volumn , Issue 4, 2006, Pages 680-686

Sodium borohydride as the only reagent for the efficient reductive alkylation of malononitrile with ketones and aldehydes

Author keywords

Aldehydes; Condensations; Ketones; Malononitrile; Reductions

Indexed keywords

ALDEHYDES; ALKYLATION; CONDENSATION; KETONES; REDUCTION; SYNTHESIS (CHEMICAL);

EID: 33644499489     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2006-926307     Document Type: Article
Times cited : (19)

References (33)
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    • note
    • Isolated yield for the previous one-pot method (ref. 5) was 83% and the reaction time was 10 min for the condensation step. The current yield was 78% in ≤6 min for both steps.
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    • 4) only produces small amounts (ca. 20%) of condensation product after 24 h at r.t. when analyzed by TLC. For a recent report on the Knoevenagel condensation of malononitrile with aromatic aldehydes in EtOH without catalyst, see: Wang, X.-S.; Zeng, Z.-S.; Li, Y.-L.; Shi, D.-Q.; Tu, S.-J.; Wei, X.-Y.; Zong, Z.-M. Synth. Commun. 2005, 35, 1915.
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    • Okada, S.1    Oohira, D.2    Otaka, K.3
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    • Jpn. Kokai Tokkyo Koho JP 2004099597, 2004
    • (b) Otaka, T.; Ohira, D. Jpn. Kokai Tokkyo Koho JP 2004099597, 2004; Chem. Abstr. 2004, 140, 303517.
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    • note
    • 4 was added after 90 min.
  • 31
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    • note
    • Additional trimethylacetaldehyde was added after 60 min.
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    • note
    • 4 was added after 20 min.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.