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Volumn 57, Issue 8, 2009, Pages 846-852

Chemical reactivity of dihydropyrazine derivatives. Cycloaddition behavior toward ketenes

Author keywords

Cycloaddition; Density functional theory; Dihydropyrazine; Imine; Ketene; X ray analysis

Indexed keywords

BETA LACTAM; BETAINE; DIHYDROPYRAZINE DERIVATIVE; KETENE DERIVATIVE; PYRAZINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 68149157441     PISSN: 00092363     EISSN: 13475223     Source Type: Journal    
DOI: 10.1248/cpb.57.846     Document Type: Article
Times cited : (6)

References (32)
  • 19
    • 68149099606 scopus 로고    scopus 로고
    • note
    • 13) that the reaction of 2,3-diphenyl-5,6-dihydropyrazine (1a) with diethyl fumarate gave the diethyl 3,4-diphenyl- 2,5-diazabicyclo[2.2.2]oct-2-ene-7,8-dicarboxylate via the [4+2]-cycloaddition of the [1,5]-sigmatropic rearrangement product (1a') of 1a.
  • 25
    • 68149101463 scopus 로고    scopus 로고
    • note
    • Inspection of the geometries of the complexes calculated by the B3LYP/6-31G(d) method indicates that the phenyl group is rotated by 55° out of the plane of C=N bond in which the anti OC is less stable by 5.14 kcal/mol than the syn OC.
  • 26
    • 68149165470 scopus 로고    scopus 로고
    • MOS-F (V5.0A), AM1 and PM5 calculations were performed using Fujitsu Ltd., Tokyo, Japan
    • MOS-F (V5.0A), AM1 and PM5 calculations were performed using MOPAC2002 ver. 1.00, Fujitsu Ltd., Tokyo, Japan, 2001.
    • (2001) MOPAC2002 Ver. 1.00
  • 30
    • 68149160878 scopus 로고    scopus 로고
    • 13
    • 13)
  • 32
    • 21144446663 scopus 로고    scopus 로고
    • teXsan: Molecular Structure Corporation, Rigaku Coporation
    • teXsan: Crystal Structure Analysis Package, Version 1.11. Molecular Structure Corporation, Rigaku Coporation, 2000.
    • (2000) Crystal Structure Analysis Package, Version 1.11


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.