• Bulletin of the Korean Chemical Society
• /
• 제31권9호
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• pp.2527-2530
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• 2010

The stereoselectivity of the intramolecular Diels-Alder reactions of 1 and its derivatives were investigated by ab initio calculations. The stereoselectivity mainly originates from the steric repulsion and the orbital interactions. The additional s-cis and s-trans conformations by introducing the carbonyl group at the neighbor of diene or dienophile may change the stereoselectivity, hence this kind of substitution can be utilized for stereoselectivive asymmetric synthesis.

• Nuclear Engineering and Technology
• /
• 제5권1호
• /
• pp.26-29
• /
• 1973

25$^{\circ}$및 35$^{\circ}C$의 아세톤 용액에서 부롬화 훼네틸들의 할로겐 교환반응을 연구하였다. 결과로 이 반응은 전형적인 SN2형 반응이고 염소 교환의 경우 1-부롬화 훼네틸의 입체 반해작용으로 활성화 파라메터에 큰 변화를 가져옴을 알았다.

• Bulletin of the Korean Chemical Society
• /
• 제19권5호
• /
• pp.561-564
• /
• 1998

Solvent effects on the reactions of DANSYL and BANSYL chlorides with substituted pyridines have been investigated using two parameters of Taft's solvatochromic correlation and four parameters of Kirkwood-Onsager, Parker, Marcus, Hildebrand equation. The acetonitrile molecules accelerate charge separation of the reactants and stabilize the transition state. The coefficient of the solvent parameters provide a good information to predict and to analyze the reaction mechanism. The nucleophilic substitution reaction of DANSYL and BANSYL chlorides with substituted pyridines are ruled by the contribution of the change in dipole moment term and polarity-polarizability term.

• 대한화학회지
• /
• 제54권1호
• /
• pp.174-176
• /
• 2010

• Bulletin of the Korean Chemical Society
• /
• 제31권7호
• /
• pp.1837-1838
• /
• 2010

• Bulletin of the Korean Chemical Society
• /
• 제32권4호
• /
• pp.1125-1126
• /
• 2011

• Bulletin of the Korean Chemical Society
• /
• 제30권10호
• /
• pp.2453-2456
• /
• 2009

• Bulletin of the Korean Chemical Society
• /
• 제29권3호
• /
• pp.675-678
• /
• 2008

• 대한화학회지
• /
• 제39권12호
• /
• pp.955-958
• /
• 1995

• Bulletin of the Korean Chemical Society
• /
• 제30권1호
• /
• pp.253-256
• /
• 2009