And, this one here, some of you might recognize, is dichlorodifluoromethane. It's also known as a CFC.

而且在这些当中有些你或许认识，是二氯二氟化碳，它也是众所周知的氟利昂。

麻省理工公开课 - 固态化学导论课程节选

So I show that here, so in green, you have what's called a carboxcylic acid group, a c o o h, which gets converted by s o c l 2 to a c double bond o c l or an acid chloride.

我在这里用绿色表示，我们所说的羧酸族化合物，碳，氧，氧，氢，它被亚硫酰氯转化为,一个碳氧双键与碳氯单键组成的酰氯。

麻省理工公开课 - 化学原理课程节选