1) tetrahydropyran
四氢吡喃
1.
6%, while m-aminophenol was used as material, tetrahydropyran as hydroxyl shielding effect agent, ethyl bromide as ethyl reactant and dimethylsulfate as methyl reactant.
采用间氨苯酚为原料,以四氢吡喃(THP)作羟基保护剂,以溴乙烷作烷基化试剂,硫酸二甲酯作甲基化试剂,在原有最优化合成工艺条件下,经4步反应合成N-乙基间甲氧基苯胺,产率达到57。
2.
4-Chloro-6-phenyl-2-(2-oxopropyl)tetrahydropyran was obtained unexpectedly by the Prins reaction of 4-methyl-1,8-nonadiene-4,6-diol and benzaldehyde in the presence of indium trichloride in methylene chloride at room temperature.
以4-甲基-1,8-壬二烯-4,6-二醇为Prins反应的起始原料,在三氯化铟存在下与苯甲醛反应,得到了2-(2-氧代丙基)-6-苯基-4-氯四氢吡喃。
3.
9%,while m-aminophenol is used as reactant,tetrahydropyran as hydroxyl shielding effect agent,acetic anhydride as acyl protection reactant and amidogen mono-substituted alternative reactant,ethyl bromide as ethyl reactant,dimethylsulfate as methyl reactant.
采用间氨苯酚为原料,以四氢吡喃(THP)作羟基保护剂,以醋酸酐作酰基保护剂和氨基单取代的专一选择剂,以溴乙烷作烷基化试剂,硫酸二甲酯作甲基化试剂,在原有最优化合成工艺条件下,经六步反应合成N-乙基间甲氧基苯胺,产率达到65。
2) tetrahydropyran ether
四氢吡喃醚
1.
As an effective protection for hydroxy group in alcohols and phenols,the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
3) Tetrahydro-4H-pyran-4-one
四氢吡喃酮
4) amylene oxide ring
四氢吡喃环
5) tetrahydrobenzo[b]-γ-pyran
四氢苯并吡喃
1.
K_2CO_3 as the base,aromatic aldehyde,malononi- trile and 5,5-dimethyl-1,3-cyclohexanedione were condensed to form tetrahydrobenzo[b]-γ-pyran derivatives in a solvent-free one-pot process under grinding.
四氢苯并吡喃衍生物在药物和农药研究中有着广泛的用途。
6) tetrahydrobenzo[b]pyran
四氢苯并[b]吡喃
1.
One-Pot Synthesis of 2-Amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo- 4H-5,6,7,8-tetrahydrobenzo[b]pyran in Aqueous Medium;
水中“一锅法”合成2-氨基-3-氰基-4-芳基-7,7-二甲基-5-氧代-4H-5,6,7,8-四氢苯并[b]吡喃
补充资料：四氢吡喃
分子式：C5H10O
分子量：86.13
CAS号：142-68-7
性质：无色液体。沸点为88℃。
制备方法：暂无
用途：医药中间体。
分子量：86.13
CAS号：142-68-7
性质：无色液体。沸点为88℃。
制备方法：暂无
用途：医药中间体。
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