我看到了几种说法：
1. To do…, svo. 句型中的 Inf的逻辑主语与句子主语可一致也可不同：
比如：To made stereo effects, two recordings are made the some performances. √
2.不定式放句首时，逻辑主语与句子主语要一致。
To save money, he has tried every means. √
To save money, every means has been tried. ×
上述两种说法矛盾。不了解真实的状况是怎么样呢？
另外：Therefore to increase the yield of the targeted reaction products, many factors are taken into consideration.这句话语法对不对呢？
你的问题句是出现垂悬修饰语（dangling modifiers)的错误。依据语法规则，主句主语应该和修饰语中的主语一致才正确。依据《牛津英语语法指南》第四版115（4）词条的讲解，对于垂悬修饰语，现在已经同意的是主句为形式主语或there be结构，或垂悬部分为习惯用语的情形，请看该书例句：
1. Being French, it's surprising that she's such a terrible cook.
2. Having so little time, there was not much that I could do.
3. Considering everything it wasn't a bad year.
以上使用方法都是正确的。
你的句子是不定式结构，是尚未认同的使用方法。海外一些网站的语法教学页面也有解说，如：
http://www.biomedicaleditor.com/grammar-tip-dangling.html
Example
To investigate the relationship, a series of experiments were designed. （Incorrect)
Correction：
We designed a series of experiments to investigate the relationship.
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https://www.niu.edu/writingtutorial/grammar/dangling-modifiers.shtml
Incorrect:
To see well, the lights in this room need to be adjusted.
Correct:
To see well, you must adjust the lights in this room.