pyrans
听听怎么读
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是什么意思
变形
复数：pyrans
学习怎么用
权威例句
Reaction of singlet oxygen with 4-methyl-2,3-dihydro-.gamma.-pyransComputer-assisted prediction of normal boiling points of pyrans and pyrrolesPhotophysics, photochemistry and kinetics of photochromic 2 H -pyrans and chromenesPhotochromism of Synthetic and Naturally Occurring 2H-Chromenes and 2H-PyransA green one-pot multicomponent synthesis of 4-pyrans and polysubstituted aniline derivatives of biological, pharmacological, and opt...One-step synthesis of substituted 6-amino-5-cyanospiro-4-(piperidine-4')- 2H,4H-dihydropyrazolo[3,4-b]pyrans.Amino-functionalized ionic liquid as catalytically active solvent for microwave-assisted synthesis of 4H-pyransSodium bromide catalysed one-pot synthesis of tetrahydrobenzo[ b ]pyrans via a three-component cyclocondensation under microwave irr...Sodium Bromide Catalyzed One‐Pot Synthesis of Tetrahydrobenzo[b]pyrans via a Three‐Component Cyclocondensation under Microwave Irr...Synthesis of cyclobutenes by the novel photochemical ring contraction of 4-substituted 2-amino-3,5-dicyano-6-phenyl-4H-pyrans
