Aug 26, 2004 01:06
20 yrs ago
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English term

37% overall yield

English Tech/Engineering Chemistry; Chem Sci/Eng
Context: The mixture was kept at 4oC for 20 h. The precipitated product was filtered off, washed with acetone (two times, 15 L each) and dried (50 oC/50 torr) for 48 h to give 5.4 kg of the title compound (37% overall yield from O-ethyl (cyclohexylmethyl)phosphinate) as a fine white crystalline solid

Question: As I can see the ¡°title compound¡± is derived from O-ethyl (cyclohexylmethyl)phosphinate) , but as I see at the beginning of this article, the original O-ethyl (cyclohexylmethyl)phosphinate) is 12 g. So where does the 37% come from?

Thank you in advance!

Responses

+2
26 mins
Selected

explanation below

37% overall yield from O-ethyl (cyclohexylmethyl)phosphinate means 37% of the initial compound (O-ethyl (cyclohexylmethyl)phosphinate) was converted to the final product and rest (63%) are lost during the synthesis process. The weight of final compound may be still higher because there were other initial compounds which weight were also added to the weight of the final compound.
Peer comment(s):

agree Jörgen Slet
8 hrs
Thank you Jörgen
agree Elena Petelos
11 hrs
Thank you Elena
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4 KudoZ points awarded for this answer. Comment: "Graded automatically based on peer agreement."
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