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151408-92-3

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151408-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151408-92-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,4,0 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 151408-92:
(8*1)+(7*5)+(6*1)+(5*4)+(4*0)+(3*8)+(2*9)+(1*2)=113
113 % 10 = 3
So 151408-92-3 is a valid CAS Registry Number.

151408-92-3Downstream Products

151408-92-3Relevant articles and documents

Synthesis of polycyclic cyclobutane derivatives by tandem intramolecular Michael-aldol reaction under two complementary conditions: TBDMSOTf-Et3N and TMSI-(TMS)2NH

Ihara, Masataka,Taniguchi, Takahiko,Makita, Kei,Takano, Michiko,Ohnishi, Masaru,Taniguchi, Nobuaki,Fukumoto, Keiichiro,Kabuto, Chizuko

, p. 8107 - 8115 (2007/10/02)

The treatment of αβ-unsaturated esters having a ketone function at an appropriate position with either TBDMSOTf in the presence of Et3N or TMSI in the presence of (TMS)2NH provided, via a tandem intramolecular Michael-aldol reaction sequence, several different types of cyclobutane derivatives. The two reaction conditions were complementary. Tricyclo[4.2.1.03,8]nonanes 34 and 55, tricyclo[5.1.104,8]nonane 40, tricyclo[5.4.0.03,7]undecane 51, tetracyclo[5.4.0.03,7.09,11]undecane 45, and the bicyclo[3.2.0]heptanes 56, 57, and 58, which have structures either partially or completely similar to those of endiandric acids A (1a), B (1b), and C (2), trihydroxydecipiadiene (3), lintenone (4), italicene (5), and filifolone (6), were stereoselectively synthesized by the tandem reaction.

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