[kriggy]

Hi guys, Im reading paper about Richman-Atkins macrocyclisation and it says:
"We have found that using that using performed bissulfonamide sodium salt...(2)" and picture shows:

And here comes the confusion, I thought that sulfonamide group is R-SOO-N-RR (sry for not using smiles, doesnt work for me) but the scheme shows Ts which is tosyl group AFAIK. So are those two same or not? Im realy confused..
Thanks a lot

[discodermolide]

tosyl is an abbreviation for para-tuoluene sulfonyl.
In the scheme you have a para-toluene sulphonamide sodium salt.
The other tosyl is also a para-toluene sulfonyl bit when attached to oxygen as in an alcohol it is an ester of sulfonic acid.
Sulfonamide


Tosyl

[hinhthoi]

The compound 1, how does not contain -R group? Shouldn't it be -Ts?

[kriggy]

The compound 1, how does not contain -R group? Shouldn't it be -Ts?

Yes it is.

@disco: Yes exactly. So they just shortened the description in the text. Instead of bistoluensulphonamide salt they wrote bissulphonamide salt. That explains it. thanks