3H-萘并[2,1-b]吡喃,3H-naphthopyran,音标,读音,翻译,英文例句,英语词典

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1) 3H-naphthopyran 点击朗读

3H-萘并[2,1-b]吡喃

And three novel 3H-naphthopyrans with long chain substituents were synthesized by the condensation of 6-n-dodecylnaphthen-2-ol with prop-2-yn-1-ols,which are 8-dodecyl-3,3′-diphenyl-3H-naphthopyran(NP1),8-dodecyl-3,3′-bis(p-methoxyphenyl)-3H-naphthopyran(NP2) and 8-dodecyl-3,3′-bis(p-n-butoxyphenyl)-3H-naphtho pyran(NP3),respectively.

在相转移催化剂C18H37N(CH3)3C l的存在下合成了6-十二烷基-2-萘酚;6-十二烷基-2-萘酚分别与3种炔醇进行缩合,得到了3种萘环上有柔性长链的萘并吡喃:8-十二烷基-3,3-二苯基-3H-萘并[2,1-b]吡喃(NP1)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP2)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP3),对它们在溶液中和高分子膜中光致变色性能进行了研究。

2) 3,3-Diphenyl-3H-naphtho[2,1-b]pyran 点击朗读

3,3-二苯基-3H-萘并[2,1-b]吡喃

3) naphtho[2,1-b]pyran 点击朗读

萘并[1,2-b]吡喃

4) 4H-naphtho[1,2-b]chromene 点击朗读

4H-萘并[1,2-b]吡喃

5) naphthopyran 点击朗读

萘并吡喃

The substituted naphthopyrans have been synthesized by the reaction of aromatic aldehydes with malononitrile (or ethyl cyanoacetate) and β-naphthol in ethanol at reflux in the presence of piperidine.

以芳醛、丙二腈(或氰乙酸酯)、β-萘酚为原料在六氢吡啶存在下以乙醇为溶剂一锅合成了取代萘并吡喃,产物的结构通过单晶X射线衍射分析确定。

The naphthopyrans compounds were structurally modified and characterized by IR,~1H-NMR and MS methods.

通过缩合反应对萘并吡喃结构进行了结构改性,合成了新的萘并吡喃类化合物,分别测定了产物的熔点及计算了产率,其结构经红外光谱、核磁共振和质谱进行了结构确证。

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6) Ambrox 点击朗读

十二氢-3a,6,6,9a-四甲基-萘并[2,1-b]-呋喃

补充资料：3,3-二苯基-3H-萘并[2,1-b]吡喃

分子式：C₂₅H₁₈O
分子量：334.41
CAS号：4222-20-2

性质：熔点160°C。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

参考词条

6-氯-1H,3H-萘并[1,8-CD]吡喃-1,3-二酮螺萘并吡喃萘并吡喃酮苯并[b]吡喃 1,3-二氧代-1H,3H-萘并[1,8-CD]吡喃-6-磺酸钾盐四氢苯并[b]吡喃 4H-苯并[b]吡喃苯并噻唑螺萘并吡喃甲酰基吡啶酮并[2,1-b]苯并噁唑吲哚啉螺萘并吡喃 2,2-二芳基萘并吡喃

1H,3H-萘并[1,8-cd]吡喃-1,3-二酮

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	您的位置：首页 -> 词典 -> 3H-萘并[2,1-b]吡喃 1) 3H-naphthopyran 3H-萘并[2,1-b]吡喃 1. And three novel 3H-naphthopyrans with long chain substituents were synthesized by the condensation of 6-n-dodecylnaphthen-2-ol with prop-2-yn-1-ols,which are 8-dodecyl-3,3′-diphenyl-3H-naphthopyran(NP1),8-dodecyl-3,3′-bis(p-methoxyphenyl)-3H-naphthopyran(NP2) and 8-dodecyl-3,3′-bis(p-n-butoxyphenyl)-3H-naphtho pyran(NP3),respectively. 在相转移催化剂C18H37N(CH3)3C l的存在下合成了6-十二烷基-2-萘酚;6-十二烷基-2-萘酚分别与3种炔醇进行缩合,得到了3种萘环上有柔性长链的萘并吡喃:8-十二烷基-3,3-二苯基-3H-萘并[2,1-b]吡喃(NP1)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP2)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP3),对它们在溶液中和高分子膜中光致变色性能进行了研究。 2) 3,3-Diphenyl-3H-naphtho[2,1-b]pyran 3,3-二苯基-3H-萘并[2,1-b]吡喃 3) naphtho[2,1-b]pyran 萘并[1,2-b]吡喃 4) 4H-naphtho[1,2-b]chromene 4H-萘并[1,2-b]吡喃 5) naphthopyran 萘并吡喃 1. The substituted naphthopyrans have been synthesized by the reaction of aromatic aldehydes with malononitrile (or ethyl cyanoacetate) and β-naphthol in ethanol at reflux in the presence of piperidine. 以芳醛、丙二腈(或氰乙酸酯)、β-萘酚为原料在六氢吡啶存在下以乙醇为溶剂一锅合成了取代萘并吡喃,产物的结构通过单晶X射线衍射分析确定。 2. The naphthopyrans compounds were structurally modified and characterized by IR,~1H-NMR and MS methods. 通过缩合反应对萘并吡喃结构进行了结构改性,合成了新的萘并吡喃类化合物,分别测定了产物的熔点及计算了产率,其结构经红外光谱、核磁共振和质谱进行了结构确证。更多例句>> 6) Ambrox 十二氢-3a,6,6,9a-四甲基-萘并[2,1-b]-呋喃补充资料：3,3-二苯基-3H-萘并[2,1-b]吡喃分子式：C₂₅H₁₈O 分子量：334.41 CAS号：4222-20-2 性质：熔点160°C。说明：补充资料仅用于学习参考，请勿用于其它任何用途。参考词条 6-氯-1H,3H-萘并[1,8-CD]吡喃-1,3-二酮螺萘并吡喃萘并吡喃酮苯并[b]吡喃 1,3-二氧代-1H,3H-萘并[1,8-CD]吡喃-6-磺酸钾盐四氢苯并[b]吡喃 4H-苯并[b]吡喃苯并噻唑螺萘并吡喃甲酰基吡啶酮并[2,1-b]苯并噁唑吲哚啉螺萘并吡喃 2,2-二芳基萘并吡喃

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