THE BIOLOGICAL ACTIONS OF 1,10-PHENANTHROLINE AND 2,2′-BIPYRIDINE HYDROCHLORIDES, QUATERNARY SALTS AND METAL CHELATES AND RELATED COMPOUNDS

1969 ◽  
Vol 47 (2) ◽  
pp. 203-218 ◽  
Author(s):  
FP Dwyer ◽  
IK Reid ◽  
A Shulman ◽  
Glenda M Laycock ◽  
Shirley Dixson
Keyword(s):  
Metal Chelates ◽  
Quaternary Salts ◽  
Related Compounds ◽  
Biological Actions

Sulfonation of strychnine and some related compounds by sulfur dioxide – manganese dioxide (the Leuchs reaction)

1980 ◽  
Vol 58 (22) ◽  
pp. 2380-2385 ◽  
Author(s):  
John T. Edward ◽  
Patrick G. Farrell ◽  
Syed A. Samad ◽  
Richard Wojtowski ◽  
Sin Cheong Wong
Keyword(s):  
Sulfur Dioxide ◽  
Manganese Dioxide ◽  
Quaternary Salts ◽  
Related Compounds ◽  
C Nmr

On the basis of pK measurements, 13C nmr, and chemical arguments, the zwitterionic structures 3 and 4 have been assigned to the two minor products obtained by sulfonating strychnine or brucine in water with a mixture of sulfur dioxide and manganese dioxide. The same reagent sulfonates the quaternary salts of strychnine and brucine to give betaines, but fails to sulfonate many other strychnine derivatives as well as a number of other alkaloids examined.

Base-Induced Reactions of N-Methyl Quaternary Salts of 1-Azadibenzo[c,f]bicyclo[3.3.1]nona-3,6-diene and Related Compounds

Heterocycles ◽  
1978 ◽  
Vol 9 (11) ◽  
pp. 1545 ◽  
Author(s):  
Hiroaki Takayama ◽  
Takashi Nomoto ◽  
Takayoshi Suzuki ◽  
Masayuki Takamoto ◽  
Toshihiko Okamoto
Keyword(s):  
Quaternary Salts ◽  
Related Compounds
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