Detail of "757-54-0"

Reference

1,3-Dipolar cycloaddition of C-benzoyl-N-phenylnitrone to vinyl-,

1,3-Dipolar cycloaddition of C-benzoyl-N-phenylnitrone to vinyl-, .beta.-cyanovinyl-, and allylphosphonates and C,N-diphenylnitrone to allylphosphonate. Arbuzov, B. A.; Samitov, Yu. Yu.; Dianova, E. N.; Lisin, A. F. (Khim. Inst. im. Butlerova, Kazan, USSR). Izv. 5492-70-6 and 757-54-0 which are cas registry numbers are also used here. Akad. Nauk SSSR, Ser. Khim., (12), 2779-85 (Russian) 1976. CODEN: IASKA6. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 28 Cycloaddn. reaction of BzC+HNPh(O-) with CH2:CHP(O)(OMe)2 in CH2Cl2 at 20.degree. gave 55% of a mixt. of I [R = P(O)(OMe)2, R1 = H; R = H, R1 = P(O)(OMe)2]. Similar reaction with (EtO)2P(O)CH:CHCN gave II. Cyclization of R2C+HNPh(O-) with CH2CHCH2P(O)(OMe)2 gave 64.7, 83% resp. of III (R2 = Ph, Bz). .

2-Alkenylphosphonates and PO-ylides derived thereof in trans selective Horner-Wittig olefination reactions

2-Alkenylphosphonates and PO-ylides derived thereof in trans selective Horner-Wittig olefination reactions. Liu, Rong Qiang; Schlosser, Manfred (Insitut Chemie Organique, Universite Lausanne, Lausanne CH-1015, Switz.). 123-11-5 is the cas registry number. This chemical is also mentioned in this article. Synlett, (12), 1197-1198 (English) 1996 Thieme. CODEN: SYNLES. ISSN: 0936-5214. DOCUMENT TYPE: Journal CA Section: 21 (General Organic Chemistry) Allylic PO-ylides generated from dialkyl or diaryl 2-alkenylphosphonates by treatment with a strong base react with aldehydes to afford 1,3-dienes trans-selectively. The newly formed double bond typically exhibits Z/E ratios of 1:99. .