thanks for replying. I'm a bit timid specially when it comes to subjects I have very little knowledge about, and scientific papers on organic material preparation is not my strong-suite thats why i'm seeking help here, i'm also looking at a few less scientifically inclined articles. I'm sorry for not writing up my thoughts, but here goes.
From my understanding both process are similar however second one covers a more wider temp. spectrum. however I know that this is an active research area, so rapid development might be the reason. I do not truly understand the preparation process or how does it differ between both or across other similar material. it seems that one done at more refined method while the first is crude and geared towards larger production.
and for my last questions I do not know why one process is a patent while the other is a scientific papers, even though the process looks similar to other process in other scientific articles and even other patents, I do not see anything special other than company's wishing to pad up their IP portfolio, but then again i'm sure their is more to it.