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Trans-1,2,3-tris(p-toluolsulfonylmethyl)cyclopropan is a complex organic compound with the molecular formula C27H27O9S3. It is a cyclopropane derivative with three p-toluolsulfonyl groups attached to the carbon atoms at positions 1, 2, and 3. The compound is characterized by its unique structure, which features a three-membered carbon ring with three p-toluolsulfonyl groups (C7H7SO3) attached to each carbon atom. This results in a highly strained and reactive molecule, which can be used as a synthetic intermediate in the preparation of various organic compounds. The compound is typically synthesized through the reaction of cyclopropanone with p-toluolsulfonyl chloride in the presence of a base. Due to its strained and reactive nature, trans-1,2,3-tris(p-toluolsulfonylmethyl)cyclopropan can undergo various chemical transformations, making it a valuable building block in organic synthesis.

5575-42-8

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5575-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5575-42-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,7 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5575-42:
(6*5)+(5*5)+(4*7)+(3*5)+(2*4)+(1*2)=108
108 % 10 = 8
So 5575-42-8 is a valid CAS Registry Number.

5575-42-8Downstream Products

5575-42-8Relevant academic research and scientific papers

Simple large-scale preparation of 1,2,3-tris-acceptor substituted cyclopropanes

Kozhushkov, Sergei I.,Leonov, Andrei,De Meijere, Armin

, p. 956 - 958 (2007/10/03)

Triethyl (1α,2α,3β)cyclopropane-1,2,3-tricarboxylate (3aa), as well as diethyl (4ab) and dimethyl (1α,2β,3α)-1-acetylcyclopropane-2,3-dicarboxylate (4bb) have been prepared on a scale of up to 60 g by Michael initiated ring-closure (MIRC) cyclopropanation of dialkyl fumarates 1a,b with ethyl chloroacetate (2a) and chloroacetone (2b) in 62%, 51% and 56% yield, respectively. For the success of the new procedure it is essential to slowly add (within 5-7 h) the mixture of compounds 1 and 2 to a vigorously stirred suspension of K2CO3 in DMF in the presence of benzyltriethylammonium chloride.

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