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Volumn , Issue 9, 2007, Pages 1458-1460

A novel isocyanide-based three-component condensation reaction: Synthesis of fully substituted imino- and spiroiminocyclopentenes

Author keywords

7,7,8,8 tetracyanoquinodimethane; Iminocyclopentene; Isocyanides; Spiroiminocyclopentene; Tetracyanoethylene

Indexed keywords

7,7,8,8 TETRACYANOQUINODIMETHANE; CARBOXYLIC ACID DERIVATIVE; CYCLOALKENE; DIACETYLENEDICARBOXYLATE DERIVATIVE; DICHLOROMETHANE; IMINE; IMINOCYCLOPENTENE; ISOCYANIDE DERIVATIVE; NITRILE; SPIROIMINOCYCLOPENTENE; TETRACYANOETHYLENE; UNCLASSIFIED DRUG;

EID: 34250744227     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-980364     Document Type: Article
Times cited : (29)

References (35)
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    • Typical Procedure for the Preparation of Dimethyl 5-(tert-Butylimino)-3,3,4,4-tetracyanocyclopent-1-ene-1,2-dicarboxylate (4a) To a magnetically stirred solution of tetracyanoethylene (0.128 g, 1.0 mmol) and dimethylacetylenedicarboxylate (0.140 g, 1.0 mmol) in CH2Cl 2 (15 mL) was added dropwise a mixture of tert-butyl isocyanide (0.83 g, 1 mmol) in CH2Cl2 (2 mL) at -10°C over 10 min. The mixture was allowed to warm to r.t. and was stirred for 15 h. After completion of the reaction, the solvent was removed under vacuum and the residue was crystallized from CH2Cl2-n-hexane (1:2) to yield 0.353 g of 4a as a cream powder (100, mp 161-162°C. IR (KBr, νmax, 2256, 2207, 1739 cm-1. 1H NMR (300 MHz, CDCl3, δ, 1.56 [s, 9 H, CH3) 3C, 3.96 (s, 3 H, OCH3, 4.06 s, 3 H, OCH3
    • 4: C, 67.92; H, 4.01; N, 14.67. Found: C, 67.46; H, 3.87; N, 15.40.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.