“吡喃”造句

吡喃不是芳香的, 但眬英嗡离子是.
Pyran is not aromatic, but the phrylium ion is.

报道了氯化锌催化合成正辛基 -D- 吡喃葡萄糖苷反应机理的研究,考察了影响产物构型的因素.
The mechanism to synthesize the octyl - D - glucopyranoside catalyzed by zinc chloride is suggested.

0.2%α - 吡喃酮WP的 有效成分为5, 6- 二氢-6-戊基-2H-吡喃 -2- 酮(5, 6-dihydro-6-pentyl-2H-pyran-2-one ).
The active ingredient of α - pyrone 0.2 % wettable powder is 5,6 - dihydro - 6 - pentyl - 2 H - pyran - 2 - one.

• #吡喃