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N-Hydroxymethylation of Phthalimides by Titanium Dioxide in Methanol

등록일
2005년 2월 17일 12시 32분 16초
접수번호
0854
발표코드
24P234포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅰ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
이혜종, 김성식
전북대학교 화학과,
Heterogeneous photocatalysis is an emerging technology and is important for organic synthesis as well as for enviromental purification. Titanium dioxide is a stable highly-photoactive semiconductor material that has been applied to the photoreactions of phthalimides using UV light. It was found that irradiation of a methanol solution of phthalimide and titanium dioxide gave the novel product, N-hydroxymethyl-3-hydroxyphthalimidine as the final product in good yield, along with trace amount of 3-hydroxyphthalimidine and N-hydroxymethylphthalimide. Irradiation of some derivatives such as 4-methyl, 4,5-dichloro, and 2,3-naphthalenedicarboxyimide and titanium dioxide in methanol gave the same type of photoproducts. However, irradiation of N-methyl and N-phenyl phthalimides in methanol gave only 3-hydroxyphthalimidine derivatives. In the case of 4-aminophthalimide, maleimide, succinimide and cis-1,2,3,6-tetrahydrophthalimide, N-hydroxymethyl compounds were produced as the major products.

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