By Henri Ulrich
Cumulenes are natural molecules with or extra cumulative (consecutive) double bonds. Their reactions frequently continue at room temperature, without or with a catalyst, and are stereospecific, giving the response items in excessive yields – positive aspects attribute of “click reactions”.
Cumulenes in click on Reactions presents a finished record of cumulene structures and their reactions, with an emphasis on their “click-like” nature. The chapters are based in accordance with the variety of carbon atoms within the procedure, together with assurance of:
- introduction to the chemistry of cumulenes
- one-carbon cumulenes: sulfines, sulfenes, thiocarbonyl S-imides, thiocarbonyl S-sulfides, and 1-aza-2-azoniaallene salts
- two-carbon cumulenes: carbon oxides, carbon sulfides, carbon nitrides (isocyanates, isothiocyanates, and carbodiimides), phosphaallenes, and diarsaallenes
- 1,2-dicarbon cumulenes: ketenes, thioketenes, ketenimines, 1-silaallenes, 1-phosphaallenes, and different steel allenes
- 1,3-dicarbon cumulenes: thiocarbonyl S-ylides, 2-azaallenium salts, 1-oxa-3-azoniabutatriene salts, 1-thia-3-azoniabutatriene salts, and phosphorous ylides
- 1,2,3-tricarbon cumulenes: allenes, butatrienes, better cumulenes and heterobutatrienes
- noncarbon cumulenes: azides, triazaallenium salts, sulfur oxides, sulfur nitrides, N-sulfinylamines, sulfurdiimides, and dithionitronium cation
Cumulenes in click on Reactionsis a vital advisor for researchers and complex scholars in academia and learn operating in man made natural, inorganic and bioorganic chemistry.Content:
Chapter 1 common creation (pages 1–12):
Chapter 2 1?Carbon Cumulenes (pages 13–44):
Chapter three 2?Carbon Cumulenes (pages 45–241):
Chapter four 1,2?Dicarbon Cumulenes (pages 243–390):
Chapter five 1,3?Dicarbon Cumulenes (pages 391–398):
Chapter 6 1,2,3?Tricarbon Cumulenes (pages 399–473):
Chapter 7 Noncarbon Cumulenes (pages 475–540):
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Extra resources for Cumulenes in Click Reactions
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Treatment of the sulfene dimers with silylating agents produces sulfoxonium ylides 14 . In the reaction of benzoylmethanesulfonyl chloride with triethylamine the α-oxo sulfene 4 is generated, which undergoes dimerization via a [4+2] cycloaddition reaction to give the cyclodimer 5. 1 [2+1] Cycloaddition Reactions Sulfene reacts with triphenylphosphine to give a quaternary phosphonium salt. The reaction seems to proceed via an initial [2+1]] cycloaddition to form 6, which rearranges to give a thiaphosphoridene dioxide intermediate 16 .
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Cumulenes in Click Reactions by Henri Ulrich