The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The abso...The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?展开更多
The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-...The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-[3-trifluoromethyl-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-phenylpropan-1-amine was synthesized from 2-chloropyrazine and benzaldehyde by hydrazinolysis,trifluoroacetylation,cyclization,hydrogenation,condensation and deprotection reaction.The structures of the compound and its intermediates were determined by IR,NMR,and MS.展开更多
A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)...A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)-3-[(1R)-tert-butyldimethylsilyloxyethyl]-4-acetoxy-2-azetidi-none(4AA)upon thionocarboxlic acid.The intermediates and the target product were characterized by 1HNMR,IR,elementary analysis and MS.展开更多
以1,3,5-三（甲基三氟丙基）环三硅氧烷（D3F）与N,N-二甲基-β-氨乙基-γ-氨丙基二甲氧基硅烷（KH-602）为原料,在氢氧化钾催化剂存在下,采用本体聚合反应合成了一种氨基聚硅氧烷-N,N-二甲基-β-氨乙基-γ-氨丙基聚甲基氟丙基硅氧烷（A...以1,3,5-三（甲基三氟丙基）环三硅氧烷（D3F）与N,N-二甲基-β-氨乙基-γ-氨丙基二甲氧基硅烷（KH-602）为原料,在氢氧化钾催化剂存在下,采用本体聚合反应合成了一种氨基聚硅氧烷-N,N-二甲基-β-氨乙基-γ-氨丙基聚甲基氟丙基硅氧烷（AFSO-1）。最佳合成条件为：30.0 g D3F、1.9 g KH-602、0.015 0 g KOH,反应温度105-115℃,反应时间4-8 h。用红外光谱对其结构进行了表征,将其用10%（占AFSO-1的质量分数）的脂肪醇聚氧乙烯醚、0.1%（占AFSO-1的质量分数）的乙二醇丁醚进行乳化,制得了粒径为55.6 nm透明状微乳,并用固体份质量分数为0.3%的乳液整理白棉布。结果表明,经其整理的棉布弯曲刚度减小（柔软性增强）、折皱回复角增大,拒水效果为80分。展开更多
文摘The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?
文摘The fused triazole derivatives,which is an important inhibitors of the dipeptidyl peptidase-Ⅳ enzyme(DPP-Ⅳ),can be used for the treatment or prevention of type 2 diabetes.A new fused triazole derivatives of 3-oxo-3-[3-trifluoromethyl-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-phenylpropan-1-amine was synthesized from 2-chloropyrazine and benzaldehyde by hydrazinolysis,trifluoroacetylation,cyclization,hydrogenation,condensation and deprotection reaction.The structures of the compound and its intermediates were determined by IR,NMR,and MS.
文摘A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)-3-[(1R)-tert-butyldimethylsilyloxyethyl]-4-acetoxy-2-azetidi-none(4AA)upon thionocarboxlic acid.The intermediates and the target product were characterized by 1HNMR,IR,elementary analysis and MS.
文摘以1,3,5-三（甲基三氟丙基）环三硅氧烷（D3F）与N,N-二甲基-β-氨乙基-γ-氨丙基二甲氧基硅烷（KH-602）为原料,在氢氧化钾催化剂存在下,采用本体聚合反应合成了一种氨基聚硅氧烷-N,N-二甲基-β-氨乙基-γ-氨丙基聚甲基氟丙基硅氧烷（AFSO-1）。最佳合成条件为：30.0 g D3F、1.9 g KH-602、0.015 0 g KOH,反应温度105-115℃,反应时间4-8 h。用红外光谱对其结构进行了表征,将其用10%（占AFSO-1的质量分数）的脂肪醇聚氧乙烯醚、0.1%（占AFSO-1的质量分数）的乙二醇丁醚进行乳化,制得了粒径为55.6 nm透明状微乳,并用固体份质量分数为0.3%的乳液整理白棉布。结果表明,经其整理的棉布弯曲刚度减小（柔软性增强）、折皱回复角增大,拒水效果为80分。
