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정경규,김혁,박우경,최대영 한국항해항만학회 2018 한국항해항만학회 학술대회논문집 Vol.2018 No.추계
항만, 연안해역의 주요지점에 위치한 항로표지시설에 해양기상 관측센서를 설치하여 국지적 해양기성 정보를 실시간 제공으로 해양교통안전을 도모하고자 해양기상신호표지를 구축하였음
鄭敬圭 釜山大學校 師範大學 1976 교사교육연구 Vol.3 No.2
Indirect Chlorination of Aniline can be achieved by the reaction of the Aniline hydrochloride with Dimethyl sulfoxide. The p-Chloroaniline is obtained from the reaction of Aniline hydrochloride with a large excess of Dimethyl sulfoxide at an elevated temperature. This indirect Chlorination of Aniline afforded pure p-Chloroaniline in 46% of yield.
p-Chlorotohiene으로 부터 p-Toluic acid의 합성
정경규 釜山大學校 師範大學 1975 교사교육연구 Vol.2 No.2
p-Toluic acid was synthesized by the Grignard synthesis with p-Chlorotoluene and activated magnesium metal. The activated magnesium metal was prepared by reduction of anhydrous magnesium chloride with some alkali metals in various ethers. The addition of potassium iodide and some other metal halides to reaction mixture has produced a highly reactive magnesium metal and p-Toluic acid in high yields.
몇가지 4차암모늄염의 상간이동 촉매반응 (I) : Cannizzaro 반웅 및 Williamson Ether 합성반응
鄭敬圭 釜山大學校 師範大學 1978 교사교육연구 Vol.5 No.2
Phase Transfer Catalysis of some Quarternary ammonium salts such as Tetra-n-butylammonium hydrogen sulfate (TnBA), Triethylbenzylammonium chloride(TEBA), Trimethylbenzylammonium chloride(TMBA) and BenzyldimethyltetradecylammoBium chloride, in the Cannizzaro reaction and the Williamson Ether synthesis was attempted. These salts catalyze the Cannizzaro reaction and the Williamson Ether synthesis in aqueous solution. The Cannizzaro reaction was strongly catalyzed by adding trace amounts of TEBA.
몇 가지 4차암모늄염의 상간이동촉매반응 (Ⅱ) : 아닐린의 슬픈화반응
鄭敬圭 釜山大學校 師範大學 1979 교사교육연구 Vol.6 No.2
Phase Transfer Catalysis of organic phase soluble Quaternary ammonium salts such as Tetra-n-butylamm-onium bisulfate (TBAB), Benzyltriethylammonium chloride (BTEAC), Benzyltrimethylammonium chloride (BTMAC) and Benzyldimethyltetradecylammonium chloride (Zephiramine), in the sulfonation of Aniline was attempted. Among the these salts, TBAB, BTEAC and BTMAC catalyze the sulfonation of Aniline. The reaction was strongly catalyzed by TBAB and BTEAC.
鄭敬圭,金德源 釜山大學校 師範大學 1980 교사교육연구 Vol.7 No.2
Ethyl acetoacetate was prepared by the condensaiton of Ethyl acetate using phase transfer catalyst. In this study the writer investigated catalyst activity of such quaternary ammonium salts as Benzyl-triethylammonium chloride (BTEAC), Benzyltrimethylammonium chloride (BTMAC Tetra-n-butylammonium bisulfate (TBAB) and Trioctylmethylammonium chloride (TOMAC). Among these salts, BTEAC and TBAB catalyze the condensation of Ethyl acetate, and the percent yield of Ethyl acetoacetate is roughly proportional to the moles of catalyst added.