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1,2,3-Trismethylenecyclopropane, also known as trimethylenemethane or 1,2,3-trimethylenemethane, is a cyclic organic compound with the molecular formula C6H10. It features a three-carbon ring (cyclopropane) with an additional three-carbon chain (trimethylene) attached to one of the ring carbons. This molecule is known for its high ring strain due to the small size of the cyclopropane ring and the presence of the trimethylene chain, which leads to interesting chemical reactivity and properties. It is a colorless liquid with a pungent odor and is used in the synthesis of various organic compounds. Due to its instability and potential to undergo rearrangements, it is not commonly found in nature but can be synthesized in the laboratory for specific applications in organic chemistry.

3227-90-5

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3227-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3227-90-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,2 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3227-90:
(6*3)+(5*2)+(4*2)+(3*7)+(2*9)+(1*0)=75
75 % 10 = 5
So 3227-90-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H6/c1-4-5(2)6(4)3/h1-3H2

3227-90-5Downstream Products

3227-90-5Relevant 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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