1.
Such a helerocycle is found in pyrylium salts.
吡喃盐就是这类的杂环。
2.
Asymmetric Total Synthesis of Benzopyrans and Dibenzopyrans Natural Products;
苯并吡喃及二苯并吡喃类天然产物的手性全合成
3.
Pyran is not aromatic, but the phrylium ion is.
吡喃不是芳香的，但眬英嗡离子是。
4.
New Synthetic Method for 4-Methoxy-7H-Furo[3,2-g] benzopyran-7-one
4-甲氧基-7H-呋喃[3,2-g][1]苯并吡喃-7-酮制备的新方法
5.
Synthesis and characterization of glycosyl esters of cyclopropanecarboxylic acid
(呋喃、吡喃)糖基环丙烷甲酸酯类化合物的合成和结构确证
6.
In guaran, about one-half of the D-mannopyranosyl main-chain units contain a D-galactopyranosyl side chain.
在瓜拉那中约一半D-吡喃甘露糖主链的单元含一个D-吡喃半乳糖侧链。
7.
Synthesis and Activities of 2,3a-Dihydro-chromeno-[4,3-c]pyrazol-3-one Derivatives
2,3a-二氢-苯并吡喃[4,3-c]吡唑-3-酮类衍生物的合成及其活性
8.
Quantum Chemical Study of the Thermolysis of Chroman
苯并二氢吡喃热分解反应的量子化学研究
9.
Design and Synthesis of 3H-Naphtho[2, 1-b]Pyrans Compounds & Studies on Their Photochromic Characteristics;
3H-萘并吡喃的设计合成及变色特性研究
10.
Aerobic Oxidation of Substituted Cyclopentadienes to Pyrylium Cations in Solution;
氧气液相氧化取代环戊二烯合成吡喃盐的研究
11.
The Synthesis of Derivations of 5-oxo-4H-5,6,7,8-tetrahydrobenzopyran with Microwave Assisted;
5-氧代-4H-5，6，7，8-四氢苯并吡喃衍生物的微波全合成
12.
Synthesis and Properities of Substituted 3H-naphtho[2,1-b]Pyrans;
烷基取代的3H-萘并[2，1-b]吡喃的合成及性能研究
13.
Synthesis and Research of Their Properties of Photochromic Compounds Spiropyrans;
光致变色化合物螺吡喃的合成及性能研究
14.
Study on the Novel Photochromic Spiropyran Dyes with Functional Groups and Their Applications;
含功能基团的螺吡喃化合物的合成与性能研究
15.
Synthesis of Photochromic Indolinspirobenzopyran;
光致变色化合物吲哚啉螺苯并吡喃的合成
16.
Microwave-assisted Catalytic Synthesis of 4-Oxo-4H-pyran-2,6-dicarboxylic Acid
微波辐射下合成4-氧代-4H-吡喃-2,6-二羧酸
17.
Synthesis of 4-Chloro-6-Phenyl-2-(2-Oxopropyl)Tetrahydropyran
2-(2-氧代丙基)-6-苯基-4-氯四氢吡喃的合成
18.
Synthesis of 1,2,3,4,6-penta-O-acetyl-α-D-glucopyranose
1,2,3,4,6-五-O-乙酰基-α-D-吡喃葡萄糖的合成研究