Results 121 to 130 of about 6,752 (176)
Accessing trifluoromethylated SuFEx-able pyrazole <i>via</i> distortion-accelerated 1,3-dipolar cycloadditions. [PDF]
RSC AdvKhanal B, Feliciano MAM, Gold B.
europepmc +1 more source
Computational Study of Ignored Pericyclic Reactions: Rearrangements of 1,2-Bis(Diazo)Alkanes to 1,2,3,4-Tetrazines and Subsequent Fragmentations. [PDF]
Angew Chem Int Ed EnglReissig HU, Würthwein EU.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Tetrahedron, 1988
Abstract Reaction of α-diazo ketones,RCOCN2R', with boiling carbon disulfide can give two major types of product: 2-alkylidene-1,3-dithiolan-4-one derivatives (Type A) and 4-acyl-2-alkylidene-1,-3-dithetane derivatives (type B). When R' = phenyl and R = phenyl or methyl, type A but not type B products are formed.
Peter Yates, J.A. Eenkhorn
openaire +1 more source
Abstract Reaction of α-diazo ketones,RCOCN2R', with boiling carbon disulfide can give two major types of product: 2-alkylidene-1,3-dithiolan-4-one derivatives (Type A) and 4-acyl-2-alkylidene-1,-3-dithetane derivatives (type B). When R' = phenyl and R = phenyl or methyl, type A but not type B products are formed.
Peter Yates, J.A. Eenkhorn
openaire +1 more source
Chemistry of Heterocyclic Compounds, 1974
Benzothiazole-2-diazonium tetrafluoroborate and its 6-bromo, 6-methyl, and 6-methoxy derivatives are relatively stable and have high electrophilicities. They are rapidly converted in weakly alkaline media to the corresponding anti-diazotates, from which primary nitrosoamines can be obtained by acidification.
V. V. Shaburov +2 more
openaire +1 more source
Benzothiazole-2-diazonium tetrafluoroborate and its 6-bromo, 6-methyl, and 6-methoxy derivatives are relatively stable and have high electrophilicities. They are rapidly converted in weakly alkaline media to the corresponding anti-diazotates, from which primary nitrosoamines can be obtained by acidification.
V. V. Shaburov +2 more
openaire +1 more source
How Nucleophilic Are Diazo Compounds?
Chemistry – A European Journal, 2003AbstractThe kinetics of the reactions of benzhydryl cations with eight diazo compounds 1 a–g were investigated photometrically in dichloromethane. The nucleophilicity parameters N and slope parameters s of these diazo compounds were derived from the equation log k (20 °C)=s (E+N) and compared with the nucleophilicities of other π systems (alkenes ...
Thorsten, Bug +3 more
openaire +2 more sources
Tetrahedron, 1962
Abstract The formation of azines in the reaction of diazoethane with α-diazo- p -nitroacetophenone and α-diazo- p -nitropropiophenone has been confirmed by the elucidation of the nature of certain of their further reaction products.
P. Yates, D.G. Farnum, D.W. Wiley
openaire +1 more source
Abstract The formation of azines in the reaction of diazoethane with α-diazo- p -nitroacetophenone and α-diazo- p -nitropropiophenone has been confirmed by the elucidation of the nature of certain of their further reaction products.
P. Yates, D.G. Farnum, D.W. Wiley
openaire +1 more source
Organometallic diazo compounds
Chemical Reviews, 1993Organometallic chemistry has traditionally, by definition, been concerned with the chemistry of metalcarbon-bonded compounds. Nevertheless, there is growing interest in metal-heteroatom bonds such 88 M-N, M-O, M-S, etc., in organometallic compounds.
openaire +1 more source
New Syntheses of Diazo Compounds
Angewandte Chemie International Edition, 2009AbstractDiazo compounds (R1R2CN2) are known as versatile and useful substrates for an array of chemical transformations and, therefore, diazo chemistry is still far from losing anything of its long‐standing fascination. In addition to many studies on the subsequent chemistry of the diazo group, the inventory of methods for the preparation of diazo ...
openaire +2 more sources
Diazo Compounds in Continuous‐Flow Technology
ChemSusChem, 2014AbstractDiazo compounds are very versatile reagents in organic chemistry and meet the challenge of selective assembly of structurally complex molecules. Their leaving group is dinitrogen; therefore, they are very clean and atom‐efficient reagents. However, diazo compounds are potentially explosive and extremely difficult to handle on an industrial ...
Simon T R, Müller, Thomas, Wirth
openaire +2 more sources