72179-84-1Relevant academic research and scientific papers
N-(Alkylsulfamoyl)aldimines: Easily deprotected precursors for diarylmethylamine synthesis
Crampton, Rosemary H.,Fox, Martin,Woodward, Simon
, p. 599 - 605 (2013/06/27)
The sequential reaction of chlorosulfonyl isocyanate with t-BuOH, t-BuNH2 and TFA allows formation of H2NSO 2NHBut. Condensation of the latter with Ar1CHO in the presence of Ti(OEt)4 provides the activated imines Ar 1CHNSO2NHBut (59-89%). Commercially available boronic acids add to these imines with good stereoselectivity (76-98% ee) using readily available diene ligands. Simple deprotection with 5% w/w water in pyridine affords free Ar1CHNH2Ar2.
Uracil substituted phenyl sulfamoyl carboxamides
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, (2008/06/13)
Novel uracil substituted phenyl sulfamoyl carboxamides I and salts thereof, where A=oxygen or sulfur; X1=H, halogen, C1-C4-alkyl; X2=H, CN, CS—NH2, halogen, C1-C4-alkyl, C1-C4-haloalkyl; X3=H, CN, C1-C6-alkyl, C1-C6-alkoxyalkyl, C3-C7-cycloalkyl, C3-C6-alkenyl, C3-C6-alkynyl, optionally substituted benzyl; R1, R2=H, halogen, optionally substituted hydroxy, C1-C10-alkyl, C2-C10-alkenyl, C3-C10-alkynyl, C3-C7-cycloalkyl, phenyl, benzyl or C5-C7-cycloalkenyl, or R1+R2 together with the atom to which they are attached form a 3- to 7-membered heterocyclic ring; Q is selected from Q1 to Q40 as defined in the description. Use: As herbicides; for the desiccation/defoliation of plants.
