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[b]CANADIAN JOURNAL OF CHEMISTRY 1951-1997[/b]
Volumes 29-43(12 issues per year) already up
Vo ... |
21-12-2008 at 09:52
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
I obtained the 1868 Ber, paper by Hofmann for comparison of yield. Will report back after ploughing ... |
21-12-2008 at 08:48
by: Sauron |
Problem attaching gif file image
I attached a jpg file yesterday without difficulty
I just converted same file to GIF in ACDSee an ... |
21-12-2008 at 03:29
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
Somewhere in the lit., very likely in that ACS monograph on HCHO cemistry, there will be something o ... |
20-12-2008 at 23:37
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
Chemoleo, see Vanino's 1902 paper in which he used dilute rather than concentrated HCL with formalin ... |
20-12-2008 at 16:07
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
I obtained the original 1902 Ber. paper by same author (L.Vanino) as the 1908 J.Prakt Chem. article ... |
20-12-2008 at 06:49
by: Sauron |
Synthesis of o-phenylenediamine
This is very classical.
You start with acetanilid
Block the 4-position with a sulfonyl group
... |
20-12-2008 at 01:43
by: Sauron |
FREE Online Journals
[b]CANADIAN JOURNAL OF CHEMISTRY 1951-1997[/b]
Volumes 29-43(12 issues per year) already up
Vo ... |
19-12-2008 at 19:17
by: Sauron |
Christmas Comes Early This Year
I received the first 6 m3 liquid CO2 cylinder (48 liters) with brass CGA320 valve and safety cap tod ... |
19-12-2008 at 05:26
by: Sauron |
Progress on Compressed Gases in Thailand
I have now received Frigimat JR from Cole Parmer and installed it on a on a 6 cubic meter (48 liter) ... |
19-12-2008 at 04:24
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
I would conclude then that it is not s-trithiane.
Perhaps some linear polymer [-CH2-S-]n
Have ... |
19-12-2008 at 03:09
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
Commercial trithiane looks to be about $2 a gram 97% purity and ref. mp (lit) given as 215-220 C whi ... |
18-12-2008 at 18:11
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
@smuv
clearly there's something wring with the trithiane, so either with the J.prakt Chem prep or ... |
18-12-2008 at 00:27
by: Sauron |
Christmas Comes Early This Year
I was not expecting this Cole Parmer item till mid January but they surprised me.
The brass assem ... |
18-12-2008 at 00:19
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
Org Syn does offer some salternatives
From CS2
From ethyl isothiocyanate
From potassium thi ... |
17-12-2008 at 13:01
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
Both of those Org Syn preps involving direct halogenation of trithiane are a whole lot fresher (1969 ... |
17-12-2008 at 11:01
by: Sauron |
How to Calculate Pressure for Gas over Liquid in Cylinder?
You are right. I don't dwell on minutiae, and that is what you have ever done for me, or for that ma ... |
17-12-2008 at 10:06
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
PS
The mp of the crude trithiane from the orsyn prep is well over 200 C and the mp of same after ... |
17-12-2008 at 10:02
by: Sauron |
How to Calculate Pressure for Gas over Liquid in Cylinder?
Pointing out the obvious to someone who has been doing this for 45 years is pedantry. You were not t ... |
17-12-2008 at 09:41
by: Sauron |
Help: Failed chloromethylsulfonyl chloride Prep
You may find the following three preps from Org Syn useful for comparison.
I have combined these ... |
17-12-2008 at 08:35
by: Sauron |
How to Calculate Pressure for Gas over Liquid in Cylinder?
Do you really mean to be a pedant?
Your remarks as as usual singularly unhelpful. |
17-12-2008 at 08:24
by: Sauron |
How to Calculate Pressure for Gas over Liquid in Cylinder?
In that case any of the SS vessels will be fine, they variously are rated at 1000, 1400, 1800 or 500 ... |
17-12-2008 at 01:00
by: Sauron |
How to Calculate Pressure for Gas over Liquid in Cylinder?
and also Cylinder Material Decisions for Lecture Bottles
I am rather bewildered trying to choose ... |
16-12-2008 at 22:39
by: Sauron |
Who owns our U2U's?
Notwithstanding the fact that Polverone owns all content, as long as users are allowed to delete the ... |
16-12-2008 at 09:44
by: Sauron |
Simvastatin farmaceutical industrial synthesis ?
[8-[2-(4-hydroxy-6-oxo-oxan-2-yl)ethyl] -3,7-dimethyl-1,2,3,7,8,8a- hexahydronaphthalen- 1-yl] 2-met ... |
16-12-2008 at 03:13
by: Sauron |
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