Teodoro S Kaufman

7 Questions 309 Answers 0 Followers

Questions related from Teodoro S Kaufman

How to convert multiple Topspin NMR files to a Matlab matrix?

Is there any matlab script I can use to convert (at once) multiple nmr files into a single matrix. Alternatively, conversion into a series of shift/intensity files (without needing to open/close...

07 November 2018 10,051 1 View

Are they structural polymorphs?

Have crystallized an organic compound and observed fine needles along with rombic crystals. The literature says that it crystallyzed in the ortho-rhombic crystal system and that when crystallizes...

26 April 2018 1,223 11 View

Ortho-oxygenation of aromatic ketones. Any clue?

I need to oxygenate an aromatic methyl ketone, following Dong's procedure (ACIE 2012, 51, 13075). Using 4-methoxy- and 4-bromo-acetophenone [Pd(OAc)2, BTI, DCE, 80ºC], I get good yields of the...

07 July 2016 1,621 16 View

Does anyone have knowledge on the Arrhenius Equation; Activation energy and Gaussian?

In a reaction A --> B, is there any difference between the activation energy (Ea) calculated by the use of Arrhenius equation (chemical process carried our at two different temperatures) and...

31 July 2014 222 6 View

How do you get rid of organotin waste (excess reagents, side products, etc.) in reactions with tributyltin derivatives?

25 November 2013 381 2 View

Alternative to Sat. Methanolic Ammonia

I need to use a saturated solution of ammonia in Meoh (approx 7M). Is there any alternative to just bubbling ammonia in anhydrous MeOH until saturation (which requires an ammonia cylinder)?

27 February 2013 8,464 9 View

Preparation of 6-nitro salicylaldehyde.

I need some references (preferably recent) about the preparation of 6-nitro salicylaldehyde. I will appreciate your assistance. I know that Riemmer Tiemmannn gives only 3-4% yield; and that a...

15 February 2013 317 7 View